成年男人裸J照无遮挡无码_亚洲色丰满少妇高潮18P_无码精品人妻一区二区三区漫画_亚洲色无码a片一区二区红樱_2020狠狠狠狠久久免费观看_国产精品无码无卡在线播放_96久久精品A片一区二区_国产精品久久毛片A片_少妇把腿扒开让我添69_精品亚洲国产成人AV不卡

Zhejiang Yancheng Valve Co., Ltd. is located in Oubei, Wenzhou, the beautiful hometown of China's pumps and valves. It is a professional manufacturer of valves integrating production, research and development, design and sales. Its main products are large-diameter gate valves and large-diameter check valves. At the same time, the company actively introduces advanced technology at home and abroad and keeps innovating.

Yancheng Valve has always been committed to relying on technology, continuous innovation and strict management system; A complete set of management system has been established to closely integrate product design, production, sales and service, and strictly guarantee product quality. The company specializes in producing: large-diameter gate valve, large-diameter check valve, all-welded ball valve, direct-buried welded ball valve, turbo-type all-welded ball valve, vented all-welded ball valve, flanged welded ball valve, filter-type welded ball valve, large-diameter valve, gate valve, stop valve and other valves.

Enterprises enter the information network. Striving for "quality" is the purpose of Yancheng valve, and developing new products in depth is our long-term goal. Yancheng Valve guarantees its products with good management, advanced production technology and excellent service, and returns its customers' love for Yancheng Valve with good reputation.