... . qualiy carbon steel 3. body heat treatmen pipe wrench8"7230*21*2028/2710"4830*27*2033/ ... 21*1531/3048"4106*17*1737/36Bolt cutter , pipe wrench , Hammer ect hand tools were professionally manufactured ... such as hammers ,axe,picks,crowbars,bolt cutter ,pipe wrench ,pliers, and so on.In order to ... We can develop and produce hardwares of drop forging, and the annual yeild surpasses three million pieces. ...