qt450 elastic seat gate valve ผลิตออนไลน์

Ductile Iron Elastic Seat Gate Valve German Standard Soft Seal Gate Valve DN100 Pn16/10 DN150 GGG50/QT450/GGG40/QT400 product description Nominal pressure: (Nominal pressure), indicating the symbol PN, the ... อ่านเพิ่มเติม

GGG50 Gate valve DN50-600 Flanged Sockets Soft Seal Gate Valve with Various Standards for Water product description 1 Flat bottom seat The traditional gate valve is often in the water after washing the pipe ... อ่านเพิ่มเติม

Soft Sealing Gate Valve GGG40 Water Gas Oil PN16 Iron DN50 product description: Features of elastic soft-sealed gate valve: Flat-bottomed valve seat: Traditional gate valves often deposit in the groove at the ... อ่านเพิ่มเติม