... 1000pcs Key Specifications/Special Features:Materials: carbon steel, stainless steel, alloy steel and aluminum Standard: ASTM, JIS, BS, ... covers, pump parts, handwheel, valve, flange, bollard, pilingaccessories, counterweight iron, construction machinery parts and other ... covers, pump parts, hand-wheel, valve, flange, bollard, piling accessories, counterweight, iron, construction machinery parts ...