... requirements.3.surface treatment zinc/nickel/chrome plating/hot galvanized/ painting/ PVC powder/ coating/ dichromate plating etc. ... material:aluminum,brass,alloy,stainless steel,iron,cold-plate,hot-plate,galvanized sheet,SECC,phosphor-copper,etc.5.deep process: cutting ... meter lathes3.Material:Carbon steel(cold rolled steel sheet,galvanized steel sheet or tube),stainless steel,copper ,brass,aluminum, ...