1.commodity name:wave washer 2.model number:D8*12*2 3.material:steel ... 5.grade:8.8 Product details 1.commodity name:wavw washer,spring washer2.material:carbin steel,stainless steel,mild steel, ... ,6.8,8.8,10.9,12.97.standard:DIN127,GB93-87Packing & delivery details1.packing details:plastic bag,small box ... -standard fasteners according to drawings or the samples spring washer/wave washer/locking washer