... ten years maker 4.certification: SGS,Rohs hex wrench from china hardware manufacturermaterial: steel ,stainless steel ,alloy steel or otherssurface finish ... per the customer's drawing.trade terms: FOB,C&F,CIF payment terms: T/T, L/C at sightMOQ: 100,000 ... advanced facility and perfect international management system. hex wrench from china hardware manufacturer