Elastic Seat Gate Valve German Standard Soft Seal Gate Valve DN100 Pn16/10 DDN150 product description 1. Because the soft sealing gate valve in the pipe network is usually opened and closed infrequently, the ... Đọc thêm
Rubber seat check valve QT400 sewage water gas oil PN16 PN10 ductile iron The rubber flap check valve is mainly composed of three main parts: the valve body, the valve cover and the rubber flap. Among them, the ... Đọc thêm
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