Zhongshan Longjing Filter Equipment Co., Ltd. specializes in the scientific research, design, manufacturing, marketing and service of environmental protection chemical pumps, chemical solution filters and peripheral equipment. In order to constantly improve the technical level and meet client’s demands on high grade products, our company has introduced advanced production equipment and technologies with whole set of modern test instruments and product quality test program. Longjing has attracted a batch of engineer with rich experience and professional technology, and is devoted to providing quality products and considerate services for clients due to scientific management, advanced technology and complete marketing and service network.


Since its establishment, Longjing insists on the operation outline of “hi-tech environmental protection and sincere service", and has introduced the products of new technologies, and promoted the clients to enjoy the production force of high technology. Our products are widely applied in solution treatment industry such as electroplating chemicals, pharmaceutical, environment protection and plastic products, and filtering in fine chemical industry, and have won many design patents in Taiwan and the mainland, and are well received by customers

• 1 Mechanical Finishing
•   1.1 Abrasion, Buffing & Polishing
•   1.4 Descaling/ Anti-Rusting / Rust-Removing
• 2 Pre-treatment Technologies
•   2.01 Soak Cleaning
•   2.04 Degreasing
•   2.07 Chemical Rust-Removal
• 3 Electroplating Solutions
•   3.01 Copper Plating
•   3.02 Nickel & Nickel Alloy Plating
•   3.03 Chromium Plating
•   3.04 Zinc & Zinc Alloy Plating
•   3.05 Tin/ Lead/ Tin-Lead Plating
•   3.06 Precious Metal Plating - Gold/ Silver/ Platinum/ Palladium
•   3.07 Plating on Plastics
•   3.08 Plating on PCB & Electronics
• 4 Metal Deposition
•   4.04 Immersion Plating
• 5 Surface Treatment
•   5.01 Hot Dip Galvanizing
•   5.04 Silane-Oxide Treatment
•   5.07 Stripping
• 6 Plant Equipment & Accessories
•   6.01 Electroplating / Finishing Line
• 7 Coating Equipment & Accessories
•   7.01 Paint & Powder Coatings Applications
• 1.7 Others: 
• 3.09 Others: