131D Pipe Wrench Hex Type Pipe Wrench Hex Type Pipe Wrench Rapid Grip Aluminium Bronze Alloy and Beryllium Copper Alloy Q/ZBF-131D Precision Casting Hexagonal head design increased the contact area with fasteners and firmly grip. Pipe wrench diagonal type and aluminium bronze alloy wrench are our main product. Products Details Number mm Kmax � mm Be-Cu � � g Al-Cu � � g 131D-1002 131D-1004 250 350 30 50 1250 1785 1130 1620 Hebei Botou Safety Tools ( Groups) Co., Ltd. is China tool Top Ten enterprise and China Famous export brand enterprise,owning the Chinese famous trademark "Qiaofang" and 2 well-known brand "Zhongbo" and "X-Spark" export brand. We are the largest manufacturer of non sparking tools, Explosion proof tools and non-magnetic safety hand tools in the world. Hebei Botou Safety Tools Group is national standard framer of Non sparking tools. OEM and any customized tools all accept.If you want to know the latest news about the product, please Click here and learn more.