This kind of products are used in water transport project, building structure and all the other fields.
1）Diameter: 1/2”- 6”.
2）Producing standard: GB/T3091-93, BS1387.ASTM A53A SCH40.
3）Plain end or threaded end.
4）Two kinds of Galvanized methods: pre-galvanizing and lag-galvanizing or some others call it post-galvanizing.
5）Application: water transport, anti-rust frame basis,decoration, building materials and all the other fields.