Product Introduction: CKD Heavy-Duty Industrial Closed-System Gear Oil is meticulously formulated using high-quality lubricant base oils combined with multifunctional 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-system gear drives in underground mining, cement plants, and metallurgical rolling mills, where the tooth surface contact stress exceeds 1100 MPa. Performance Features: · Outstanding extreme-pressure anti-wear performance effectively prevents tooth 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 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 enclosed gear transmission systems in underground mining, cement plants, and metallurgical rolling mills where the tooth surface contact stress exceeds 1100 MPa. Performance Characteristics: - 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 Methods / Method Kinematic Viscosity (40℃), mm²/s: 414–506; Result: 461.28; GB/T 265 Kinematic Viscosity (100℃), mm²/s: Reported as 34.09; GB/T 265 Viscosity Index: Not less than 90; Result: 110; GB/T 1995 Flash Point (Open Cup), ℃: Not lower than 200; Result: 238; GB/T 3536 Pour Point, ℃: Not higher than -9; Result: -15; GB/T 3535 Water Content: Not more than trace amounts; Result: None; GB/T 260 Mechanical Impurities, %: Not more than 0.02; Result: None; GB/T 511 Foaming Properties (Foam Tendency), mL/mL: 24℃: Not more than 50/0; Result: 10/0; GB/T 12579 93.5℃: Not more than 50/0; Result: 10/0; GB/T 12579 After 24℃: Not more than 50/0; Result: 10/0; GB/T 12579

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 and chain-type continuously variable transmissions. It can be used for maintenance of 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 ≥ 130 176 GB/T 1995 Flash Point (Open Cup), ℃ ≥ 160 208 GB/T 3536 Copper Strip Corrosion Test (150℃, 3h), Grade ≤ 1 1a GB/T 5906 Pour Point, ℃ ≤ –42 GB/T 3535 Apparent Viscosity (mPa·s) at (-40°C) ≤ 20,000 12,162 GB/T 11145 Shear Stability (100℃, 30h) 5.56 SH/T 0845 100℃ Kinematic Viscosity, mm²/s ≥ Mechanical Impurities (mass fraction), % ≤ 0.01 None GB/T 511 Water Content, ≤ Trace Trace GB/T 260 Foaming Characteristics, mL/mL 24℃ ≤ 30/05/0 GB/T 12579 93.5℃ ≤ 50/00/0 After 24℃ ≤ 30/05/0 150℃ ≤ 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 transmissions. 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 leaks 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 —— 6.1–8.3 —— 7.28 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 After 24℃ —— Not greater than —— 50/0 5/0

Product Advantages: MTF fully synthetic manual transmission oil is formulated using synthetic base oils with a high viscosity index and multifunctional additives. This product features an exceptionally wide 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 use in manual transmissions of 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 power, 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 performance, and superior high-temperature lubrication properties. 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; exhibits exceptional resistance to sludge formation, effectively controlling sludge and carbon deposits; and provides reliable protection even for natural gas engines operating under high temperatures. 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 passenger car engines fueled 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 Requirements/Standard Analytical Results/Results Test Method/Method Kinematic Viscosity (40℃), mm²/s—Reported 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—No GB/T511 Foamability, 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, oil 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 braking systems (disc or drum brakes) in power 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 Measured Values: 1. Appearance: Clear and transparent, free from suspended particles, impurities, and sediment—Pass 2. Equilibrium Reflux Boiling Point (ERBP) (°C): ≥230—249 3. Wet Equilibrium Reflux Boiling Point (WERBP) (°C): ≥155—162 4. Kinematic Viscosity (mm²/s): - At -40°C: ≤1500—1423 - At 100°C: ≥1.5—2.15 5. pH Value: 7.0 ~ 11.5—8.5 6. Corrosivity: - After 120 hours ±2 hours at 100°C ±2°C: - Tin-plated iron sheet: No visible pitting or surface roughness; discoloration or staining allowed—Pass - Steel: No visible pitting or surface roughness; discoloration or staining allowed—Pass - Cast iron: No visible pitting or surface roughness; slight weight change allowed—Pass - Aluminum: No visible pitting or surface roughness; slight weight increase allowed—Pass - Brass: No visible pitting or surface roughness; slight weight decrease allowed—Pass - Copper: No visible pitting or surface roughness; slight weight increase allowed—Pass - Zinc: No visible pitting or surface roughness; slight weight increase allowed—Pass 7. Rubber Sealing Condition: - Appearance: Surface not sticky, no carbon black precipitation—Pass - Hardness Reduction: ≤15—4 - Root Diameter Increase (mm): ≤1.4—0.41 - Volume Increase (%): ≤16—4.4 8. Post-Test Fluid Performance: - Appearance: No gel formation, no adhesion to metal surfaces—Pass - Sediment Content (Volume Fraction, %): ≤0.1—0.00 - pH Value: 7.0~11.5—8.397 9. Rubber Compatibility: - At 120°C ±2°C for 70 hours ±2 hours: - Styrene-butadiene rubber (SBR) sealing element: - Appearance: Not sticky, no blistering, no carbon black precipitation—Pass - Root Diameter Increase (mm): 0.15 ~ 1.4—0.65 - Hardness Reduction (IRHD): ≤15—5 - Ethylene propylene diene monomer (EPDM) sealing element: - Appearance: Not sticky, no blistering, no carbon black precipitation—Pass - Volume Increase (%): 0 ~ 10—4.35 - Hardness Reduction (IRHD): ≤15—3.0 10. Evaporation Performance: - At 100°C ±2°C for 168 hours ±2 hours: - Evaporation Loss (%): ≤80—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—< -5 Verification Conclusion: Pass

All products in this series comply with the new industry standards of the American Petroleum Institute (API) SP. Advanced fully synthetic oil provides efficient protection for turbocharged direct-injection engine cylinders. It offers comprehensive protection for the engine under harsh driving conditions such as long-distance hot driving, frequent city starts and stops, and prolonged idling. Effectively alleviate the problem of low-speed pre-ignition and unleash the engine's powerful power. Outstanding fuel economy and turbocharger protection function; Stronger anti-wear protection and longer engine durability performance; Excellent cleaning and dispersion performance ensures that the engine always performs as new. Meet the new Euro VI emission standards and protect the exhaust after-treatment system. Scope of Use: Suitable for high-performance vehicles that meet the emission standards of level 6 and below; Suitable for high-performance gasoline engines and hybrid engines.

CKE worm gear and worm wheel oil is made from high-quality lubricating base oil, with the addition of multi-functional composite additives, and is finely formulated through advanced blending technology. This product exhibits excellent high-temperature oxidation stability, outstanding anti-wear and anti-friction performance, as well as good rust prevention and anti-emulsification properties. The product quality and performance meet the requirements of SH/T0094-91 and MIL-L-15019E specifications. Scope of Application CKE worm gear oil is suitable for worm gear pairs that are copper-steel matched and are of cylindrical and double-enclosed types, capable of withstanding light loads and operating smoothly without shock during transmission. It is used for lubricating the gears and sliding bearings of such equipment as cylinders, clutches, etc., as well as other mechanical devices operating in humid environments. Performance Characteristics Excellent high-temperature thermal oxidation stability, extending the service life of the oil product; 。 Excellent lubrication performance and high load-bearing capacity contribute to excellent transmission efficiency of the machinery. 。 Excellent anti-corrosion and rust-proof properties, more effective for phosphor bronze materials; 。 Excellent anti-emulsification performance, effectively prolonging the service life of the equipment. 。 Excellent anti-foaming property, which can provide effective oil film protection and play a significant role in lubrication and heat dissipation.