... our products, please do not hesitate to contact us. PVC Pressure ValveNumberSize (mm)NumberSize (mm)HS-DF01Φ110HS-DF03 ... , fire-resistance3) Not rust occurs like metal pipe4) PVC conduit pipe fittings with no smell attracting to rent, will ... Installation during the process of construction, electrical equipment, components7) PVC conduit are used as surface mounting, control box, switch box or ...