Procurement of PPGI Roofing Sheet May 23, 2019 4:32 AM
By : juniper
Steel structure material accident refers to the accident caused by the steel structure material itself, such as h-shaped steel, medium thick plate, galvanized plate, painted plate and so on. China PPGI corrugated roofing sheet manufacturer classifies material accidents into two broad categories: crack accidents and collapse accidents. Crack accident mainly occurs in the basic components of steel structure, while collapse accident refers to the partial collapse and overall collapse of the structure caused by the material.
To steel structure material accident, PPGI corrugated roofing sheet manufacturer undertook its produce reason analysis.
1. The quality of steel is not up to standard;
2. The rivet quality is not qualified;
3. The bolt quality is unqualified;
4. Disqualification of welding materials;
5. Unreasonable selection of materials in design;
6. In addition, the steel and welding materials do not match;
7. Poor management during installation, resulting in mixed or haphazard replacement of materials.