davit design calculation in  UK
download davit design calculation in  UK
davit design in  UK
https://3d-labs.com/product/davit-calculation-design/
A davit is a popular crane-like device made of steel or aluminum and designed for supporting, raising,
 lateral moving, and lowering people, working platforms, boats, anchors, or other heavy equipment. 
Davit systems can be used to lower a lifeboat to the embarkation level for boarding.
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