Tianjin Sanjuyuan Trade Co., Ltd is a famous trading company which specializes in high quality seamless steel tubes/pipes and many kinds of alloy pipes, stainless steel pipes, copper tubes, aluminum tubes. Our company can also supply all kinds of high pressure boiler tubes, low and medium pressure pipes, oil cracking pipes, oil bushing pipes, chemical fertilizer pipes, fluid pipes, structure pipes, hydraulic prop pipes and line pipes.