Black Coating extension spring
This Black Coating extension spring was made for our oversea customers.It’s made in steel with black powder coating.We can offer all kinds of spring manufacturing and steel wire,special-shaped material manufacturers.If you need custom-made tension springs,please send us drawing or sample. We can meet your requirement with very low cost to save money for customer.That’s why customer stick to us from the begaining.
Black Coating extension spring Manufacturer
With many years of operating history, our product range now covers automobile parts, electronic appliances, military equipment, garden decoration, etc. Our company has more than 100 sets of CNC spring processing equipment which can process wires with diameters from 0.1 to 20 mm. Our products include pressure spring, tension spring, torsion spring, shaped spring, coil spring, etc. we also provide custom products. Besides, we have our own laboratory to better meet customers’ quality requirements. All the raw materials and products will pass strict tests, so that you can get the perfect product!
Custom tension spring
| Product Name | Custom-made extension spring |
| Material | copper,brass,music wire,stainless steel, spring steel, phosphorus copper, beryllium copperor etc. |
| Surface Finish | Zinc-plated, nickel-plated, chrome-plated, Prevent Rust oil, Paint drying, electrophoresis,and powder coated are ok for choice
environmental protection plating plating with ROHS test, salt spray test |
| Diameter | Wire diameter ranging from 0.1-20.0mm |
| Testing Machines | Projector , digital hardness tester, digital torsion strength tester. digital tension and compression strength tester . elasticity tester. life tester , salt spray test machine etc. |
| Equipments | High precision CNC machine, tempering furnace, ends grinder, shot-blasting, lathes ,millers, punches etc. |
| Quality Control | 1.Tolerance control : DIN, JIS Standard.
2. Raw Material: all material can have ROHS certification |
| Technical | Experienced engineers and technicians
Drawings-Guide production Management among all the trading process. |
| Used | Industrial/auto/Motorcycle/electronics/electric power/Toys/Sports goods/Machinery equipment etc. |
| Price terms | FOB,CIF,CFR,EXW,and others |
| Payment terms | T/T,L/C,Western Union,ect |
| Delivery method | by sea,by air or express service |
| Market | South&North America/Europe/Southeast Asia/Australia and ect |
