Steel Valve handle Steel Valve handle supplier Product Name Steel Valve handle Material Carbon steel Color Nature or black Size 10-250mm Hardness JRC65 wherewhreUsed Muliti-purpose Color: nature, black, optional Hardness: 40-45HRC Technique: forging Finished: forging Certificate: ISO9001&UKAS certificate Our factory produce: non sparking hand tools(copper alloy), non magnetic tools(stainless steel), special type tools(carbon steel) All our hand tools has passed ISO9001 and UKAS certificate. especially the striking box end wrench and striking open end wrench, both has a good reputation at home and abroad.