wrench manufacturer 1.material: carbon steel,stainless steel 2.free sample 3.over ten years maker 4.certification: SGS,Rohs hex wrench from china hardware manufacturermaterial: steel ,stainless steel ,alloy steel or otherssurface finish:galvanize,oxide coating,cleaning or phosphatedsize:as per the customer's requirementpacking:carton box,poly bag or as per the customer's demandswe can produce the ...