Spring washer 1)Material: Carbon,stainless steel 2)Size: Un-finite ... .StandardDIN125,DIN126,DIN9021, SAE,USS,F436 flat washer, Bevel washers,Nonstandard flat washer etc.MaterialWaste material;low carbon steel; medium carbon ... MOQ(Minimum Order Quantity)?The MOQ should be at least 100 kilogram each size. If your quantity is too small, ... have strict quality control from producing to delivery. Spring washer