gantry crane strictly enforce the "no hanging ten" system

① command signal is unknown or arbitrary command does not hang;
② not exceed the rated lifting weight lifting;
③ gantry crane spreaders unreasonable or unsound is not hanging objects hanging bundles;
④ Someone or other floating items are not hanging on to put hanging objects;
⑤ Hoist crane brake or other brake safety device failure does not hang;
⑥ hanging heavy traffic when not hanging directly processed;
⑦ pull Xiegua not hanging crooked;
⑧ explosive objects are not hanging;
⑨ objects buried in the ground without pulling hoists;
⑩ angular blocks mouth objects, not really hanging mats.