bowl washer: 1Material:Q235 2Surface:Zinc-plated 3Certificate:ISO9001:2008,SGS. 3We produce by client's Drawings. Carbon steel inner dia M36 bowl washer specification Details of the product:1Inner Dia Size: M362Materials: Q235, carbon steel3Standard: By client's requirements, DIN1127-A,DIN127-B, ASTM F959, JIS B1251, GB/T93 4Surface: Zinc plated, Black, HDG,Dacron etc.5Proven technique & good ...