Tianjin Youfa Steel Pipes Group
[Manufacturer, Exporter]
Tianjin youfa steel pipes group (youfasp), TOP 500 in China, a leading manufacturer and exporter of steel pipes, black, galvanized, spiral, steel-plastic, scaffolding, line pipe, casing and tubing etc., od 21-2034mm wt 1.8-18mm, BS 1387, ISO 65, ASTM A53,