Expansion hook

Expansion joint is to compensate for the temperature difference and mechanical vibration caused by additional stress, and set in the container shell or pipe on a flexible structure
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If the hook is firmly welded, it will not be a problem to bear a 100-kilogram moving object! But it is best to tighten the bolts to prevent loosening comparison of insurance, determine the maximum tolerance of the grass-roots level, rather than bolts, bolts have longer and general national standard, such as the roof is a hollow prefabricated floor, as far as possible to move to concrete beam installation More appropriate, a conservative estimate of a single ...