In 2007 our company for the Xinjiang Dushanzi 6 sets of manufacturing pressure tank of ethylene, 5 Taiwan four, 2 Taiwan carbon propylene, 2 sets of 2 sets of butane, butene, 2 Taiwan isopentane and 1 light hydrocarbon tank, a total of 20 units, of which the spherical tank of ethylene and propylene by JFE-HITEN610U2L steel imports, quality and quantity to complete the task. First, by users praise and awards.