... to customers' drawings or samples.3).Materials: Stainless steel ,Cold Rolled steel,Spring steel,Electro galvanized Steel,Aluminum alloy,brass,Copper, according to customer request4).Finish ... , 1.6, 2.0Chromium Electro galvanized SteelEGC1.0, 1.6Cold Rolled SteelSPCC, SPCD0.5, 0.8, 1.0, 1.2,1 ...