- S355 structural square hollow sections
- 2016-11-02 18:21
- HomeMineralsMetallurgy IronSteel Structural Steel S355 structural square hollowsectionsHebei Borun SteelTrade CO.,LTD[Pr
- API steel casing pipe for oil/gas transfering
- 2016-10-26 02:44
- roduct DescriptionSeamless steel casing pipe with coupling and thread protector Standard: API 5CT OD: 4-1/2''-----20'' M