1, the variety, specifications, performance of the bolt ball should conform to the current national product standards and design requirements, in order to ensure the safety of the bolt ball grid engineering, generally need to use the product has a quality certificate, Chinese marking and product quality inspection report.
2, bolt ball thread size should meet the current national standards, inspection quantity: each specification according to the number of spot check 5%, and should not be less than 3. Inspection method: use standard thread gauge.
3, the diameter of the bolt ball, roundness, the Angle of the center line of two adjacent bolt holes and other dimensions and allowable deviation should reach a certain standard, inspection method: with caliper and indexing head instrument inspection.
|
Prev：Selection of fire retardant coating for steel structure and its brushing process
Next：The structure of the grid is introduced |
Back to list |
Huiteng News
/ NEWS
Construction and installation project of sports arena grid structure
2026-05-26Xiangyang Technician College Swimming Pool Grid Manufacturing and Installation Project
2026-05-26Xiangyang Technician College Gymnasium Grid Manufacturing and Installation Project
2026-05-26Network structure project of the training base of the Fire Rescue Brigade in Guyuan City, Ningxia
2026-05-26
Industry News
/ NEWS
Corrosion treatment and anticorrosion method of net frame
2019-04-02The main body of longyan convention and exhibition center was built
2018-11-30Selection of fire retardant coating for steel structure and its brushing process
2019-09-04The second national steel structure bridge construction technology conference
2018-10-10
All rights reserved：Xuzhou Huiteng Space Structure Co., Ltd.
Design：Winsharing
