G beam ardently the beam and the cylinder hoisting accessory

摘要

(57) Abstract Topic With frame of metal make load corbel in shape of character of koWith the hoisting accessory which applies the round bar which it does, slides to the top and bottom the H steel hulaIt passes to the hole of the both ends of nji, 2 it is the hoisting accessory which is used with 1 sets. SolutionsJob becomes quick safe depending upon this device,Because you can remove with labor assistant, the upper worker moving on the beam fewWithout, because it can hang also those which are placed on the land immediately the steel-frame assembly andIt is useful to the substantial improvement of beam tupple job ardently.