100mm Non-return Valve Test Reports
East Wind Products Limited 東榮產品有限公司
專營防倒流閥門 | 100% 防倒流 100% 防臭味 100% 防細菌 | Since 2005, based in Hong Kong. Poseidon uPVC Non-return Valves have been preventing sewage backflow, odour, insects gas, bacteria and viruses.
East Wind Products Limited 東榮產品有限公司 