DIN127B 2-64mm
DIN7980 3-48mm
DIN6796 2-30mm
DIN6797 1.6-30mm
DIN6798 1.6-30mm
DIN137B 3-24mm
DIN137A 1.8-10mm
ASMEB18.21.1 No 4- 1/2
BS1802 1/8-11/2
JIS B1251 3-36mm
2)Material spring steel(70# , 65Mn),stainless steel(ss302,ss304,ss316),copper
3)surface treatment:Polishingblack, zinc plated (blue, white, yellow), hot dipped galvanized.trivalent zincZ/PCR3.Phosphating
4)Packing:In carton/sack and palletized,Generally 25kg per unit or packing according to customers' requirements.