Our company manufacture and supply welded steel pipes, hot galvanized pipes, helically welded pipes, Tianjin Boai Enterprise owns three subsidiary companies. Its products are widely used in fluid transmission (water, crude oil, natural gas, coal gas, air, and vapor for heating), fire fighting, and frame structure and hall structure. These products are manufactured in conformity with standards of ASTM A53, BS 1387, DIN 10219, API 5L, API 5ct etc..