spring washer,fastener,flat washer

spring washer,fastener,flat washer 1)DIN127B ASME B 18 21.1 BS 1802 2)Material70# , 65Mn,ss302,ss304,ss316,copper 3)surface treatment:Polishing(plain),black,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. 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 If any of our products are of interest to you, please let us know. We will be happy to give you a quotation upon receipt of your detailed requirements.