The housing assembly is made of thick section steel plate to provide enough weight.The wire line is kept taut when hoisting or lowering the unloaded block.

 
  • 側板為厚綱板;有足夠的強度和重量.;當提升和下放空吊卡時(shí),鋼絲繩常處于緊張狀態(tài),有利于滾筒纏繩和空鉤下放速度,延長(cháng)鋼絲繩壽命。
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