High strength bolts are made in 40Cr material used to connect the bolt balls with steel space frame pipes
Cone will be welded on the end of steel pipe to ensure a enough space for connections between space frame pipes and the bolt balls
Ordinary bolts for steel structure construction are divided into 3 kind: A, B, C. The first two are refined bo…
Bolts that made of high-strength steel, or require a large pre tightening, can all be called high-strength bol…
Compared with the cost of steel roof panels, the cost of the Al-Mg-Mn alloy panel is higher than 3-4 times.
