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1)Standard SizeDIN127B 2-64mmDIN7980 3-48mmDIN6796 2-30mmDIN6797 1.6-30mmDIN6798 1.6-30mmDIN137B 3-24mmDIN137A 1.8-10mmASMEB18.21.1 No 4- 1/2BS1802 1/8-11/2JIS B 1251 3-36mm2)Material spring steel(70# , 65Mn),stainless steel(ss302,ss304,ss316),copper3)surface treatment:Polishingblack, zinc plated (blue, white, yellow), hot dipped galvanized.trivalent zincZ/PCR3.Phosphating4)Packing:In carton/sack and palletized,Generally 25kg per unit or packing according to customers'' requirements.
toothed type washer
