Motorized Pipe and Flange Fitting-up Machine 1) Suitable for fitting-up of slip-on flange Motorized ... , Rotary Engineering, Petrol Steel, CNPC, SINOPEC, CNOOC, CNCEC, etc.The machine is mainly used for fitting up and spot welding on ... to 12M3, Two models available: 16" type and 16"-36" type4, Optional for 48" typeThe machine is easy to operate and regulated ...