... expert in the field of metal product, especially varius of washer for more than 10 years.We have powerful production system ... for it. Description: flat washer, washer1) Specification: DIN,ANSI, BS, such as DIN125,DIN9021,DIN433 ... ,DIN126,DIN440,DIN1440,DIN1441,DIN1052,DIN7349,DIN7989,BS4320,BS3410,SAS,and USS and non-standard washers etc2) Size: From M1.6-to ...