1. Fastener quality assurance materials should be complete, enter the site shall be carried out after sampling the second interview, technical functions should fit the rules of the steel pipe scaffolding fastener GB15831, should choose one by one before use, have crack, deformation, the bolt slide wire to stop using.

2. The welded pipe diameter should be 48-51 mm, wall thickness 3-3.5 mm, length to 4-6.5-2.8 m and 2.1 m, there are serious rust, bending, crack, damage may not be used.

3. Should be fastener factory qualified confirmed that all brittle crack, deformation and slide wire shall not be used.
4. 2 -- 3 mm thick steel scaffold board should choose the no. 3 steel plate, 1.4 -- 3.6 m in length, width, 23 rib -- 25 cm, 5 cm high, both ends should be cohesive device, board face with non-slip holes, wherever there is crack, distortion may not be used.

5. The wire: 8 #, 10 # wire.
6. The rope ladder with: hemp rope or Manila, ф 30 or more in diameter, bearing capacity meet the requirements.
7. To stop using wooden club and wooden planks.

8, fastener materials scaffolding necessary to fit the steel pipe scaffold fasteners (GB15831) rules.
The top of the list, new fastener has the production license, the legal check the test report and quality certificate of the unit. When there is doubt about the quality of fastener, and according to the current national rules regulate the steel pipe scaffold fasteners (GB15831) rule sampling inspection. To use nonconforming to stop.

Second, old fasteners before use, first quality checks, have to stop using the crack, deformation, present smooth silk thread tied to replace.