Wenzhou Topnotch Machine Co., Ltd. is a professional supplier of a wide range of industrial valves and fittings. Our products are used in oil, gas, refinery, paper making, chemical, marine, power station, and pipeline industries.

"Quality, Price and Service" is always at the heart of our work. Over these years' development, we've already established a perfect management system and a well-experienced team for the R&D, manufacture, QC and sales. Above 90% of our products are exported to overseas countries such as Thailand, Malaysia, Syria, Spain, the UK, France, the United States, etc.

Our main products are butterfly valves, ball valves, gate valves, globe valves, check valves, plug valves, control valves, safety relief valves, knife gate valves, V-port ball valves, bellow seal valves, through conduit gate valves, cryogenic valves, diaphragm valves, needle valves, pinch valves, strainers, steam traps, flanges and pipe fittings.

Materials range from conventional cast and forged steel to special alloy materials like monel, inconel, hastelloy and duplex steel. All of our products are designed, manufactured and tested fully according to API, ASTM, ANSI, JIS, DIN and BS standards.

"Keep Promise and Offer Top-Class Products & Services" is our principle. We believe that we can establish and maintain long-term win-win cooperation through our mutual efforts.