1. Fasteners warranty information should be complete, enter the site shall be carried out after sampling the second interview, technical performance shall comply with the terms of the steel pipe scaffolding fastener GB15831, before use should be selected individually, have crack, deformation, bolt slide wire is strictly prohibited.

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 advisable, severe corrosion, bending, crack, damage may not be used.

3. The certificate should be fastener factory, deformation, sliding wire shall not be used.

4. 2 -- 3 mm thick steel scaffold board should be used in the no. 3 steel plate, 1.4 -- 3.6 m in length, width, 23 rib -- 25 cm, 5 cm high, should have connection on both ends, 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. It is strictly prohibited to use wooden rods and wooden planks.

8, fastener scaffold material must conform to the requirement of the steel pipe scaffold fasteners (GB15831).

First, the new fastener has the production license, the legal test unit test report and quality certificate. When there is doubt the quality of fastener, and according to the current regulations of the state standard the steel pipe scaffold fasteners (GB15831) sampling test regulations. To ban the use of non-conforming product.

Second, old scaffolding fasteners before use, first the quality inspection, have cracks, deformation, is strictly prohibited in slide wire screw tied for replacement processing. 

Third, new, old fasteners are antirust processing.