When bolts and joint bars are moved away, the joint area of the rail and the contact surface of the joint bar have to be cleaned and the joint bar and the bolt threads have to be lubricated.
Good integration By using steels at the joints, the strength of walls is high enough to do partition in large story height and long span structures and it anti-seismic performance is several times higher than masonry.
Metal joints and lean pipe can be combined into various flexible working tables, storage racks, revolving vehicles, etc., which can be easily disassembled, easy to assemble, and improve production efficiency.
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