How to distinguish three types of precast concrete components?
The precast concrete components are divided into the following categories: Class I: Hollow and solid plates within 4m. Category II: Piles, roof slabs, industrial slabs, deep beams, foundation beams, crane girders, stairwells, stair sections, balcony panels within 6m, three types: 6m to 14m beams, slabs, columns, piles, all kinds of trusses Truss brackets.
Metal structural members are divided into three categories:
1. Type 1
Steel column, truss, bracket beam, wind shield, ball node steel grid
2. Type 2
Crane beams, brake beams, steel girders, steel supports, up and down gear, steel tie railings, cover plates, trash doors, rakes, ladders, sporadic components, platforms, and consoles.
Escalators, steel crane ladders, chimney fastening clamps, steel sheet piles, steel hoppers.
3. Type 3
Wall racks, wind deflectors, sunroof racks, combination purlins, light trusses, rolling brackets, suspension brackets, pipe supports.