Product Introduction: CKD Heavy-Duty Industrial Closed-Drives Gear Oil is meticulously formulated using high-quality lubricant base oils combined with multi-functional composite additives and advanced blending technology. This product boasts outstanding extreme-pressure anti-wear performance, excellent thermal oxidation stability, and superior rust-prevention and emulsion resistance. The product is made from refined, high-grade base oils blended with imported composite additives. Its performance meets the standards of GB5903-2011 L-CKD, AGMA 250.04 EP, DIN 51517 (Ⅲ), and US Steel 224. Application Scope: This gear oil is suitable for lubricating heavy-duty, high-temperature, and impact-prone closed gear transmission systems in underground mining, cement plants, and metallurgical rolling mills, where the contact stress on gear surfaces exceeds 1100 MPa. Performance Features: · Outstanding extreme-pressure anti-wear performance effectively prevents gear surface scoring, wear, and galling, ensuring smooth gear operation. · Excellent antioxidant and thermal stability properties prevent sludge and varnish deposits, extending the service life of the oil. · Superior rust-prevention and emulsion resistance effectively avoid corrosion and rust formation even when water enters the gear system. · Exceptional anti-foaming performance provides effective oil film protection, maintaining excellent lubrication and heat dissipation capabilities.

Product Introduction: CKD Heavy-Duty Industrial Closed-Drives Gear Oil is meticulously formulated using high-quality lubricant base oils combined with multi-functional composite additives and advanced blending technology. This product boasts outstanding extreme-pressure anti-wear performance, excellent thermal oxidation stability, and superior rust-prevention and anti-emulsification properties. The product is made from refined, high-grade base oils blended with imported composite additives. Its performance meets the standards of GB5903-2011 L-CKD, AGMA 250.04 EP, DIN 51517 (Ⅲ), and US Steel 224. Application Scope: This gear oil is suitable for lubricating heavy-duty, high-temperature, and impact-prone closed gear drive systems in underground mining, cement plants, and metallurgical rolling mills where the tooth surface contact stress exceeds 1100 MPa. Performance Features: - Excellent extreme-pressure anti-wear performance effectively prevents tooth surface scoring, wear, and galling, ensuring smooth gear operation. - Superior antioxidant and thermal stability prevent sludge and varnish deposits, extending the service life of the oil. - Outstanding rust prevention and anti-emulsification properties effectively avoid corrosion and rust even when water enters the gear system. - Exceptional anti-foaming performance provides effective oil film protection, maintaining excellent lubrication and heat dissipation capabilities. Test Items / Item Standard Requirements / Standard Analysis Results / Results Test Method / Method Kinematic Viscosity (40℃), mm²/s: 414–506; 461.28 GB/T 265 Kinematic Viscosity (100℃), mm²/s: Reported as 34.09 GB/T 265 Viscosity Index: Not less than 90; 110 GB/T 1995 Flash Point (Open Cup), ℃: Not lower than 200; 238 GB/T 3536 Pour Point, ℃: Not higher than -9; -15 GB/T 3535 Water Content: Not more than trace amounts; None GB/T 260 Mechanical Impurities, %: Not more than 0.02; None GB/T 511 Foaming Characteristics (Foam Tendency), mL/mL GB/T 12579 24℃: Not more than 50/0; 10/0 93.5℃: Not more than 50/0; 10/0 After 24℃: Not more than 50/0; 10/0

Product Advantages: Outstanding oxidation stability and resistance to chemical degradation ensure long-term, stable oil quality, helping to extend the service life of transmissions. Excellent lubricating properties contribute to superior shock absorption and vibration damping, resulting in smoother gear shifts and quieter operation, while also providing exceptional wear protection. Remarkable viscosity stability helps ensure adequate lubrication, effectively preventing excessive thinning of the oil film at high temperatures and thickening at low temperatures. Application Scope: CVT continuously variable transmission fluid is a high-end, fully synthetic CVT oil suitable for both steel-belt CVTs and chain CVTs. It can be used to maintain CVTs found in a wide range of vehicles from North America, Europe, and Asia. It is compatible with transmissions requiring specifications such as Toyota TC, Honda HMMF, and Nissan NS-2. Inspection Items / Item Standard Requirements / Standard Analysis Results / Results Experimental Methods / Method Kinematic Viscosity (40℃), mm²/s – 34.99 GB/T 265 Kinematic Viscosity (100℃), mm²/s 6.3–8.07.22 GB/T 265 Viscosity Index Not less than 130 176 GB/T 1995 Flash Point (Open Cup), ℃ Not lower than 160 208 GB/T 3536 Copper Strip Corrosion Test (150℃, 3h), Grade Not greater than 1 1a GB/T 5906 Pour Point, ℃ Not higher than –42 GB/T 3535 Apparent Viscosity/(mPa·s) Not greater than (-40°C) 20000 12162 GB/T 11145 Shear Stability (100℃, 30h) 5.56 SH/T 0845 100℃ Kinematic Viscosity, mm²/s Not less than Mechanical Impurities (mass fraction), % Not greater than 0.01 None GB/T 511 Water Content Not greater than Traces Traces GB/T 260 Foam Characteristics, mL/mL 24℃ Not greater than 30/05/0 GB/T 12579 93.5℃ Not greater than 50/00/0 After 24℃ Not greater than 30/05/0 150℃ Not greater than 100/05/0 SH/T 0722

Product Advantages: Outstanding oxidation stability and resistance to chemical degradation ensure long-term, stable oil quality, helping to extend the service life of the transmission. Excellent lubricating properties enhance clutch wear resistance, provide smoother gear shifts, reduce operating noise, and deliver superior anti-wear protection. Remarkable viscosity stability ensures adequate lubrication, effectively preventing excessive thinning of the oil film at high temperatures and avoiding excessive thickening at low temperatures. Superior compatibility with elastomeric materials and exceptional sealing performance help prevent fluid leakage and transmission component failures caused by insufficient oil levels. Application Scope: DCTF-W wet dual-clutch transmission fluid is a high-end, fully synthetic wet dual-clutch transmission oil suitable for maintaining wet dual-clutch transmissions found in a wide range of vehicles from North America, Europe, and Asia. It is applicable to wet dual-clutch transmissions equipped in numerous models from brands including Audi, Volkswagen, Ford, Volvo, Buick, Roewe, Renault, BYD, Besturn, Baojun, Changan, JAC, Zotye, and others. Inspection Items / Item Standard Requirements / Standard Analysis Results / Results Test Method / Method Kinematic Viscosity (40℃), mm²/s — 37.18 GB/T 265 Kinematic Viscosity (100℃), mm²/s — 6.1–8.37.28 GB/T 265 Viscosity Index — Not less than — 164 GB/T 1995 Flash Point (Open Cup), ℃ — Not lower than — 170 208 GB/T 3536 Pour Point, ℃ — Not higher than — -40/-45 GB/T 3535 Brookfield Viscosity / (mPa·s) — Not greater than (at -40°C) — 20,000 13,712 GB/T 11145 Copper Strip Corrosion (100°C, 3h) / Grade — 2a 1a GB/T 5096 Water Content — Not greater than — Trace Trace GB/T 260 Foam Characteristics, mL/mL — GB/T 12579 24℃ — Not greater than — 50/0 10/0 93.5℃ — Not greater than — 50/0 0/0 Post-24℃ — Not greater than — 50/0 5/0

Product Advantages: MTF fully synthetic manual transmission oil is formulated with synthetic base oils boasting a high viscosity index and multifunctional additives. This product features an exceptionally broad viscosity range, enabling it to perform reliably under demanding conditions—such as frequent gear shifts on rough mountain roads—while providing excellent protection for machine components. Product advantages include: ● Excellent fuel economy, helping to reduce vehicle operating costs; ● Superior synchronizer shifting performance, enhancing driving comfort; ● Outstanding extreme-pressure anti-wear properties, effectively protecting gear components; ● Exceptional low-temperature performance, ensuring quick gear engagement even in cold conditions; ● Strong load-carrying capacity, preventing gear scoring and wear; ● Excellent thermal oxidation stability, minimizing the formation of oxidation products. Application Scope: Recommended for manual transmissions in passenger vehicles equipped with synchro-mesh gear technology. Its superior performance meets the lubrication requirements of various devices featuring synchronizers. It can be used for lubricating manual transmissions in both domestic and imported passenger cars. Due to differences in working environments and technical formulations, this product must not be used in applications involving hypoid gear drives, limited-slip differentials, or wet clutches.

Formulated with high-quality base oils and multi-functional additives using advanced manufacturing processes. It enhances engine performance, keeps the engine clean, and extends oil-change intervals. The inclusion of multifunctional anti-wear additives minimizes wear to the greatest extent possible, effectively prolonging engine life. This product boasts excellent detergency and dispersancy, outstanding antioxidant properties, and superior high-temperature lubrication performance. Its low-sulfur and low-phosphorus optimized formulation features an environmentally friendly composition that effectively extends the service life of three-way catalytic converters. It is suitable for gasoline engines requiring API SL-grade lubricants, as well as for engines in passenger vehicles powered by natural gas or liquefied petroleum gas. We recommend this product for lubrication and protection of engines in high-load, long-mileage, and older vehicles.

Formulated with high-quality imported synthetic base oils and multi-purpose imported additives, using internationally advanced production technology. It contains multifunctional anti-wear additives that provide excellent high-energy protection for today’s advanced engines, turbochargers, and multi-valve systems. Featuring outstanding high- and low-temperature performance, it offers comprehensive temperature-range protection for engines. Its exceptional sludge-control properties effectively prevent the buildup of oil sludge and carbon deposits. It also provides reliable protection for natural gas engines operating under high-temperature conditions. Its environmentally friendly formulation helps extend the service life of three-way catalytic converters. Suitable for gasoline engines requiring API SL-grade lubricants; ideal for engines in passenger vehicles powered by natural gas or liquefied petroleum gas; recommended for a wide range of multi-valve engines, new-technology engines, and various mid-range passenger cars. Test Item / Item Standard Requirement / Standard Analytical Result / Results Test Method / Method Kinematic Viscosity (40℃), mm²/s —— 65.63 GB/T265 Kinematic Viscosity (100℃), mm²/s 9.3–12.5 10.73 GB/T265 Viscosity Index —— 154 GB/T2541 Flash Point (Open Cup), ℃ ≥200 238 GB/T3536 Pour Point, ℃ ≤-35 -42 GB/T3535 Low-Temperature Dynamic Viscosity (mPa·s) (-30℃) ≤6600 6038 GB/T6538 Water Content No trace No GB/T260 High-Temperature High-Shear Viscosity (150℃, 10⁶ s⁻¹) / (mPa·s) ≥2.9 3.157 SH/T 0703 Evaporation Loss % (mass fraction) ≤15 7.8 SH/T 0059 Noack Method (250℃, 1h) Mechanical Impurities, % ≤0.01 None GB/T511 Foam Characteristics, mL/mL GB/T12579 24℃ ≤10/05/09 3.5℃ ≤50/00/0 After 24℃ ≤10/05/0

Product Features: - Maintains braking performance for a longer duration thanks to its higher boiling point and the ability to sustain this high boiling point under intense operating conditions. This significantly reduces the formation of vapor lock at high temperatures, ensuring superior and longer-lasting braking performance. - Offers more comprehensive protection for metal surfaces—its specially formulated buffer additives keep the pH value within the alkaline range. Advanced additive technology provides all-around corrosion protection for metals such as aluminum, brass, copper, zinc, and tin, reducing leakage and pressure loss. - Features an optimized sealing expansion rate that effectively minimizes leakage caused by seal shrinkage and wear of moving parts due to excessive seal expansion. - Enhances both operational performance and service life. Outstanding thermal stability and oxidation resistance effectively prevent brake fluid degradation and the formation of harmful deposits, ensuring reliable overall fluid life and critical performance. - Possesses excellent cleaning capabilities, efficiently removing residual moisture, sludge, and impurities from brake lines, thereby extending the lifespan of the braking system and restoring braking performance to its original condition. Application Scope: Widely suitable for various conventional hydraulic braking and clutch systems, especially in harsh working conditions or where DOT4 brake fluids are recommended. Compared to lower-performance brake fluids, this product offers enhanced protection against “air lock,” providing greater safety. It is ideal for hydraulic brake systems (disc or drum brakes) in power-driven vehicles requiring DOT4 or SAE J1704 specification brake fluids. Product Name: DOT-4 Brake Fluid Production Batch Number: [Not provided] Executive Standard: GB12981-2012 Production Quantity/Serial Number: [Not provided] Inspection Items and Test Results: 1. Appearance: Clear and transparent, free from suspended particles, impurities, and sediment. Pass. 2. Equilibrium Reflux Boiling Point (ERBP) (°C): ≥230; Measured: 249. 3. Wet Equilibrium Reflux Boiling Point (WERBP) (°C): ≥155; Measured: 162. 4. Kinematic Viscosity (mm²/s): - At -40°C: ≤1500; Measured: 1423. - At 100°C: ≥1.5; Measured: 2.15. 5. pH Value: 7.0 ~ 11.5; Measured: 8.5. 6. Corrosivity: - After 120 hours ±2 hours at 100°C ±2°C, metal samples showed no visible pitting or surface roughness; discoloration or staining was permitted. Pass. - Mass change of metal samples (mg/cm²): - Tin-plated iron: -0.2 to +0.2; Measured: +0.004. - Steel: -0.2 to +0.2; Measured: +0.004. - Cast iron: -0.2 to +0.2; Measured: -0.012. - Aluminum: -0.1 to +0.1; Measured: +0.016. - Brass: -0.4 to +0.4; Measured: -0.052. - Copper: -0.4 to +0.4; Measured: +0.024. - Zinc: -0.4 to +0.4; Measured: +0.007. 7. Rubber Sealing Condition: - Appearance: Surface not sticky, no carbon black precipitation. Pass. - Hardness reduction: ≤15. - Root diameter increase (mm): ≤1.4; Measured: 0.41. - Volume increase (%): ≤16; Measured: 4.4. 8. Post-Test Fluid Performance: - Appearance: No gel formation, no adhesion on metal surfaces. Pass. - Sediment content (volume fraction): ≤0.1%; Measured: 0.000. - pH value: 7.0~11.5; Measured: 8.397. - Rubber Compatibility: - At 120°C ±2°C for 70 hours ±2 hours, SBR rubber seals showed no stickiness, no blistering, and no carbon black precipitation. Pass. - Root diameter increase (mm): 0.15 to 1.40; Measured: 0.65. - Hardness reduction (IRHD): ≤155. - Volume increase (%): 1–165.65. - EPDM rubber seals showed no stickiness, no blistering, and no carbon black precipitation. Pass. - Volume increase (%): 0 to 10; Measured: 4.35. - Hardness reduction (IRHD): ≤153.0. 9. Evaporation Performance: - At 100°C ±2°C for 168 hours ±2 hours, evaporation loss (%) ≤80; Measured: 67.5. - Residue properties: When rubbed with fingertips, residue contains no granular sand particles or abrasive materials. Pass. - Pour point (°C): Not higher than -5; Measured: < -5. Verification Conclusion: Pass.

All products in this series comply with the latest industry standards set forth by the American Petroleum Institute (API) SP specification. This advanced, fully synthetic engine oil provides highly effective protection for cylinders in turbocharged direct-injection engines. Under demanding driving conditions—such as long-distance high-temperature driving, frequent stop-and-go city traffic, and prolonged idling—it offers all-around protection for the engine. It effectively mitigates low-speed knocking and fully unleashes the engine’s powerful performance. The oil boasts exceptional fuel economy and superior protection for turbochargers; its enhanced anti-wear properties significantly extend the engine’s service life. Its outstanding cleaning and dispersing capabilities ensure that the engine consistently operates at peak performance, just like new. It meets the latest Euro VI emission standards and effectively protects the exhaust aftertreatment system. Application scope: Suitable for high-performance vehicles meeting China VI and lower emission standards; ideal for high-performance gasoline engines and hybrid engines.

CKE worm gear oil is formulated using high-quality lubricant base oils combined with multifunctional composite additives and refined through advanced blending technology. This product boasts excellent high-temperature oxidation stability, outstanding anti-wear and anti-friction performance, as well as superior rust-prevention and emulsion-resistance properties. Its quality and performance fully meet the requirements of SH/T0094-91 and MIL-L-15019E standards. Application Scope: CKE worm gear oil is suitable for cylindrical and double-closed worm gear pairs made of copper and steel combinations. It can withstand light loads and ensures smooth operation without impact during transmission. This product can be used to lubricate gears and sliding bearings in equipment such as cylinders and clutches, as well as other mechanical devices operating in humid environments. Performance Features: · Exhibits excellent high-temperature thermal oxidation stability, extending the service life of the oil; · Offers outstanding lubrication performance and high load-carrying capacity, helping to improve mechanical transmission efficiency; · Demonstrates exceptional corrosion and rust prevention properties, particularly effective when used with phosphor bronze materials; · Possesses excellent emulsion resistance, effectively prolonging the service life of equipment; · Displays superior anti-foaming performance, forming an effective oil film that plays a crucial role in both lubrication and heat dissipation.