1. ISO 9001 quality system certification
2. ISO 14001 Environmental Management System Certification
3.OHSAS18000 Occupational Health and Safety Management System Certification
4.EU CE certification...
TWS Valve mainly produce rubber seated butterfly valve, such as wafer butterfly valve, lug butterfly valve, flange butterfly valve. Besides, gate valves, check valves and ball valves are also their...
The 9th China Environment Expo was held in Guangzhou from September 17 to 19 at Area B of the China Import and Export Fair Complex. As Asia’s flagship exhibition for environmental governance,...
Hard seal butterfly valve
Hard sealing of butterfly valve refers to that both sides of the sealing pair are made of metal materials or other hard materials. The sealing performance of this kind of ...
The valve connection surface structure directly affects the valve sealing performance, installation method and reliability in pipeline system. TWS will briefly introduce the mainstream connection f...
TWS Valve Factory Will Close several days from February 12 to February 22 to celebrate our Spring Festival,We will back then and during the holidays,There maybe some delay for reply your emails,Hop...