Spring washer 1.TYPE:GB93 M18 Specifications1)Material: stainless steel 304,316 2)all kinds of specifications3)Material:stainless steel 304,316,410.etc.4)Standard:DIN,ANSI/ASME,ISO,GB,IFI,JIS,BS5)All kinds of product can be made according to customer6)Price:subject to the latest7)Contact to us,MR. Zhang,TL:+86-0574-86220141,+86-0574-86220142