WCB hand square valve wrench 1.material:carbon steel wcb, ss304,ss316, etc 2.we can custom for you as your drawings or sample WCB hand square valve wrench1.material:carbon steel wcb, c20,c45, stainless steel 304,316,etc2.weight range: 0.05kg-30kg3.surface treatment: zinc plated or chrome plated, or polishing, or as your demand.4.we can custom make the wrench according to your sample or your ...