... 3.Shape:Spur gear 4.Surface treatment:Zinc plated High quality cnc machining zinc plated steel spur gear Our Advantages :Over ... , Plastic, Aluminium POM, Delrin, Titanium Alloy etc.2) Surface treatment:Zinc plating, Anodization, Chemical fim, Powder, Passivation, Sand blasting, Brushing & ... etc6) Drawing format:. pdf/.dwg/.igs./.stp/x_t. etc7) Terms of trade:EXW, FOB, CIF8) payment:T/T9) Packing:Foam, ...