Technology and Material
◪ 1. All steel tube material is Q235in line with GB700-88.
◪2. Joint point of tube use all round angle welding.
◪ 3. Butt weld must be Groove welding penetration-level 3.
◪4. Bolts are galvanized common large hex head bolts, in line with GB5780-86; nuts in line with GB41-86.
◪ 5. Manuel-weld uses welding rod E43xx.
◪ 6. Use white pvdf material for the film.
◪ 7. Wire rope standard (GB / t8918-1996), if the project requires a nominal strength of 1570MPA, to surface galvanized processing and installation.
◪ 8. All welds should be checked, standard grade -b.
◪ 9. Rust removal is St3, with zinc-rich epoxy and anti-rust primer primer.
◪ 10. Finish the steel bracket and remove any slag from the weld.
◪ 11. For the processing of properly separated ultra-long steel, the strength of the weld joint on site shall be the same as that of the original steel.
◪ 12. The accuracy of the foundation/embedded plate should be reconfirmed before the steel structure is installed.
◪ 13. The membrane and steel structure installation should be properly arranged.
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