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Blacken 2.5mm torsion spring for door lock(Samples welcomed):
1.Material:steel,stainless steel.brass,aluminum,brass.cooper. carbon steel.
2.Surface:zinc plating ,powdered,pas
3.All our products are made by high-quality steels and first-class producing process
4.Samples are warmly welcomed !
Our Advantage;
1 | Factory | Established in 2000,got SO 9001-2004 approved |
2 | Casting experience | Over 15rs,OEM service available |
3 | Trade experience | Over 10 years |
4 | Strong enginnering team | Accurately read drawing,offer competitive price and gurantee good qualitly products |
5 | Packing | Inner plastic bag , outer carton box, and advised by customer. |
6 | Surface Treatment | Powder coating,neikel plating,chrome plating,zinc plating,etc and We can make according to your design |
7 | Production euipment | production line of investment casting introduced from Taiwan,spectrum analyzer device imported from Germany,vacuum melting furnace,CNC machine center... |
8 | Test Euipment | spectrum analyzer, Physio-chemicalLabora tory |
9 | Production lines | 1) The lost-wax casting of stainless steel and heat-resisting steel with silica-gel shell made of mid-temperature wax materials; 2) Two lines of lost-wax casting of carbon steel and alloy steel with water glass shell made of low-temperature wax material; 3) The resin sand casting of ductile iron and gray iron; 4) Non-ferrous casting with investment casting or sand casting process; 5) Advanced machining center. |
10 | Awared Certificate | in line with European environmental requirements, meet the RoHS standards (SGS test |
Blacken 2.5mm torsion spring for door lock(Samples welcomed)