QINGDAO DUKYANG TRADE CO., LTD is a leading washer manufacturer specializing in standard and non-standard washer,square plated washers and pressings(stamping parts ) in various materials Type :Flat washer ,plain washer ,fender washer , square washer ,square plated washer ,square taper washer ,square Belleville washer ,spring washer ,split lock washer ,spring lock washer, toothed lock washer ,tab washer ,external tap washer ,internal tab washer ,washer with two taps ,star washer ,structural washer ,wave washer ,tooth lock washer and special washer according to the design of client Standard:DIN125A,DIN125B ,DIN126,DIN433,DIN449 ,DIN1440,DIN1441,DIN6916,DIN7349 ,DIN7989-1,DIN7989-2,BS4310,BS4320A ,BS4320B,BS4320C ,BS4320D,BS4320E,USS,SAE,F/W,NFE25-513,AS1252-1973,ISO7089,ISO7090,ISO7091,ISO7092,ISO7093-1,ISO7093-2,ISO7093-2,ISO7094 ;DIN436,DIN557,DIN562;DIN434,DIN435,DIN6917,DIN6918,DIN127B,DIN128,DIN137-A,DIN137-B,DIN7980,DIN6797-A,DIN6797-I ,6798-A ,6798-I ,DIN93,DIN432,DIN462,DIN463 Su
Stamping parts