Zhejiang Zhensheng Valve Co., LTD. is a collection of stainless steel fluid pipes and fittings, valve manufacturing, product marketing, project engineering installation and non-ferrous metals investment in the industry of collectivization, joint-stock enterprises. Our company main business: stainless steel pipes, pipe fittings, valves, flange, casting, vacuum science and technology products and service center of industry and trade easy and inventory. Years of production...