... . A403-WP304L. A403-WP316. A403-WP316L.Applications rangePetroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etcMin Order ... The former name was Hebei Xinxing Steel Pipe Manufacture Co., LTD, online trading began in 1997. Currently our company ... years, our company for domestic coal-fired power, chemical, shipbuilding, metallurgy, pressure vessel, petrochina and sinopec ...