1. bending mandrel is one of key parts of pipe bending machine, it is for purpose of preventing pipe inner wall from wrinking and controlling ovality during cold bending process of pipe bending....
We are Chinese manufacturer of pipeline construction equipments including internal pneumatic pipe line up clamp, external line up clamp, paywelder, pipe beveling/ facing machine, pipe bending mandrel....
1.We can design and produce the fully hydraulic pipe facing machine including internal expanding type and external clamping type. It cover all sizes from pipe 6' ' to 80' ' . 2.The bevel shape of....
1. crawler type paywelder function with electricity generating, traveling, welding, lifting. 2. our crawler type paywelder has an 11.2% improvement in efficiency by adopting patent hydraulic clutch....