At the Wenchong Shipyard, I admire those hoists. Once, the hoist lifted two 6135 generator sets to the rear of the cabin. The hatch is so small that it is seven meters from the cabin of the cabin. How to lift it in place? They used four 3 ton chain hoists, two front and two rear, front and rear loose, a little bit forward, just put the generator set safely on the frame. The cranes are strong and strong, their brains are flexible, they work very carefully, we admire them very much.