Fire Pipes for sale We can produce and supply to you various steel pipes according to international standard. Hot dip galvanized steel pipes or Black steel pipes are used in the following fields,steel structure, build structure, scaffolding tube, transportation of low pressure liquid and gas etc. Our products are exported to about 60 countries in the world; we get a lot of recognition from many customers since our good quality and service. Galv.: Hot-dip Galvanizing Size: 1/2鈥?--8鈥?/p> Temperature: -30鈩?-80鈩?/p> Normal Pressure: 0.1 Mpa--8Mpa Connection: Grooved銆丳lained銆乀hreaded Application: Water System, Sprinkler System, Gas system, Oil and HAVC System Product Advantages: Galv. coating is uniformity, clean and bright. Using 0# zinc ingot, with good anti-corrosion ability.Fire Pipes for sale website:http://www.baolaisteelpipes.com/fire-pipes/