In grid engineering, we install use every steel structure grid components have certain requirements, usually, guangdong Tien Chen Steel Structure Engineering Co. , ltd.-steel structure engineering, Guangdong Steel Structure Engineering, steel structure plant construction engineering company to tell you that the steel structure grid will be in the following areas of special requirements higher requirements: structural components: material, Surface roughness, tolerance, surface treatment, straightness ( radian) ; Connection: hole deviation, Bolt Grade; welding method, welding standard, welding material; airtightness, require non-destructive testing, liquid penetration testing, etc. Packaging: packaging materials, packaging methods; warehousing: environmental temperature, environmental humidity; transport: loading unloading, car placed, container placed, so on. The above is the content of today's talk, I hope it can help you, if you want to know more relevant information, welcome online consulting customer service, call the company's service hotline (top right corner of the site) for advice, we will be dedicated to provide you with quality service!