About us

Tianjin United Steel Pipe Co., Ltd. is specialized in producing high-tech ERW pipes. Our company has advanced ERW340 high-frequency straight resistance welding machine, vertical cuts equipment of 1,600mm, on-line ultrasonic testing device, off-line ultrasonic testing device, plain ends and beveling ends machine, hydraulic pressure testing machine as well as necessary mechanics testing, physical and chemical inspection center. Our company can produce ERW steel pipes with outer diameter 4-1/2 in-1...