... also according to customers' reqquirements. 4.Material: super duplex stainless steel, incoloy, incolonel, hastelloy, monel, nimonic etc. 5. ... What else of Washers can we supply? 1Namecarbon steel washer,tapper washer2.standardUSS,SAE,FENDER, F436,DIN ( 125A, 126, ... 436, 440, 7349, 7989, 9021),BA,NFE,JIS,and according to customers' requirements.3.MaterialCarbon steel ...