Specification :

We can produce and supply to you various steel pipes according to international standard. Including spring fire pipe, we have UL certificate for this product, our products are exported to about 60 countries in the world, and we get a lot of recognition from many customers since our good quality and service.
Product standard ASTM A135 or ASTM A795
O.D. ¦ 33.7— ¦ 219.1 ( mm)
Wall thickness 2.75— 5.0 ( mm)
Anticorrosive 1. hot galvanized 2. powder coating 3.painting
End state: 1.Grooved 2. Plain end 3.screwed& socketed
Function: Fire and water supply system in building