Aluminium H frame scaffolding are used for supporting the windows, for the plastering of the buildings, for supporting the industrial structures, cladding of the glass, maintaining the industries and so on. And the frames components are constructed by hig
Bronze is the earliest used alloy, originally referred to as copper-tin alloy. Because the color is bluish gray, it is called bronze. Copper alloys other than brass and white copper (copper-nickel alloy) are now called bronze.
Precast box girder is widely used in the construction of expressway.The traditional precast box girder formwork is widely used, which has the advantages of low cost, simple structure and easy operation.