1)Material: Carbon,stainless steel 2)Size: Un-finite 3)Finishing:ZW,ZB,ZY,Nickel, ZP.else 4)Tolerance:0.01 Spring washer1)Standards:DIN127A, DIN127B ASME B 18 21.1 BS 18022)Material70# , 65Mn,ss302,ss304,ss316,copper3)Surface treatment:Polishing(plain),black,zinc plated (blue, white, yellow), hot dipped galvanized,trivalent zincZ/PCR3,Phosphating4)Packing:bulk in cartons then pallet Or accroding ...