... . Surface treatment:Plain, black finished, Zinc plated (Galv), Hot Dip Galvanized, Nickel, phosphate black, DACROMET coating, etc.7. Packing:bulk packing ... ,ASTM:grade2,grade5 grade8Finishin Coloured zinc-plated(galvanized,can be white,blue,yellow,green)Hot dip galvanized(HDG)Nickel-plated,Chrome-plated,Tin ...