Zhejiang Onero Valve Co., Ltd. is one of the leading valve manufacturers in Yongjia County of Zhejiang Province, which is known as the "China Valve Center". Covering a total area of 21,000 square meters, our 3 factories employ 180 workers and technicians. The annual output now reaches 5,000MT. With the 3 factories specializing in different valve products, we can supply cast and forged steel gate valves, glo..