Tianjin Boyu Steel Pipe Co., Ltd. is a large-scale enterprise specializing in producing ERW and SAW welded pipes. We also deal with galvanized steel pipe, square pipe, seamless pipe, and steel belt. The steel grade could be J55, X65, X70. Our pipes are produced as per standards of API 5L, API 5CT, ASTM A53, BS1387, DIN2440, EN10219, JIS 3101, JIS 3115. Our products aren't only used for transmission of petroleum, natural gas, coal or ore slurry, but also used as parts in machinery, construction, power, aviation and chemistry we utilize advanced production testing equipment, including...