As a company absorbed in fluid transportation, BSK invented the world\'s first dual ceramic air valve system! It is highly valued by customers for its unique patented technology and nanny service, high quality, wide applicable area excellent stability. In ...

DARRY Diaphragm Pump & Valve Industry Co., LTD founded in 2007. Nowadays, its high quality products are utilized over 80 countries around the world, and have already won an international reputation, attracting customers by our advanced technologies, unique ...