Yuhuan Xindun Machinery Co., Ltd. e sebetsa ka ho khetheha ho hlahiseng mofuta o mong le o mong oa li-valve tsa boleng bo holimo tsa backwater, li-valve tsa bolo, li-plumbing valves, li-fittings tsa koporo le lisebelisoa tse khethehileng tsa ntloana, joalo-joalo.