Found in 2003,Now Tianjin Tanggu Water-Seal Valve Co.,Ltd (TWS Valve) has become one of China's leading suppliers of water management valve products and product solutions.Furthermore, we have built up our own strong brands "TWS" .TWS Valve's core products include resilient butterfly valve, gate valve,check valve,Y strainer,balancing valve,air releasing valve, backflow preventer,etc,and all products conform to international standards.TWS Valve's quality system is strictly certfified by ISO 9001,most products have approval of CE,WARS, As the quality is high quality ,price competitive, and service professional, our products have been exported to Europe,North Amercia,Soth Amercia,Southeast Asia,etc.We are dedicated to defining new standards in valves for water,Now Join us on our voyage.

Picture	Certification Name	Certified By	Business Scope	Available Date --- Expired Date	Verified
	OHSAS18001	CNAS	Valve Design, Manufacturing and Service	2015-02-06 ~ 2018-02-05	Verified
	ISO14001	CNAS	valve design, manfufacturing and service	2015-02-06 ~ 2018-02-05	Verified
	ISO9001	DNV	Design and manufacture of butterfly valves, check valves and gate valves	2007-03-06 ~ 2018-09-14	Verified
	OHSAS18001	Other	Valve design, manufacture and service	2018-02-06 ~ 2021-02-05	Verified
	ISO14001	Other	Valve design, manufacture and service	2018-02-06 ~ 2021-02-05	Verified

Business Type	Manufacturer, Trading Company	Country / Region	Tianjin, China
Main Products	Butterfly Valve, Gate Valve, Check Valve, Balanced Valve, Backflow Preventer, Y Strainer	Ownership	Private Owner
Total Employees	51 - 100 People	Total Annual Revenue	confidential
Year Established	2003	Certifications(5)	ISO9001, ISO14001, OHSAS18001, ISO14001, OHSAS18001
Product Certifications(7)	WRAS, WRAS, WRAS, CCC, CCC, CCC, Other	Patents(7)	Butterfly check valve, Big size rubber seat concentric butterfly valve, Big size two pieces stem pinless butterfly valve, Backflow preventer, Safey type water-save backflow preventer, Big displacement volume air release valve, Save water mini backflow preventer
Trademarks(1)	TWS	Main Markets	Domestic Market 50.00% Eastern Europe 10.00% Western Europe 10.00%