spring washer

Our products can be made at the special order by customers.Our products according to the system of ISO 9001have been reviewed as high quality product in Zhejiang Province

4)Packing:In carton/sack and palletized,Generally 25kg per unit or packing according to customers' requirements.

3)surface treatment:Polishingblack,zinc plated (blue, white, yellow), hot dipped galvanized,trivalent zinc CR3+,Phosphating

2)Material70# , 65Mn,ss302,ss304,ss316,copper

  JIS B 1251              3-36mm

  BS1802                1/8-11/2

  ASMEB18.21.1     No 4- 1/2

  DIN127A               1.8-10mm

  DIN137B               3-24mm

  DIN6798               1.6-30mm

  DIN6797               1.6-30mm

  DIN6796               2-30mm

  DIN7980               3-48mm

  DIN127B               2-64mm

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