- Piece Type Threaded Ball Valve
- 2017-01-14 04:34
- 1. July Valves is a professional manufacturer; 2.Product superior quality and competitive price; 3.In stock,delivery sho
- Guange Type Ball Valve
- 2016-10-23 22:58
- 1, The fluid resistance is small, the resistance coefficient witn the length of pipe section is the same.2, Simple struc