Safe hidden trouble: Scissors is maintained did not press a demand successive be well versed in reachs the summitSafe hidden trouble: Work hand board did not spread a base completely and not fixedSafe hidden trouble: 1, scaffold is big from wall space, without preventive measure; 2, work hand board span leaves a foot bigger, did not spread firm; 3, crural hand board contact does not accord with a requirement, build at will receive. Safe hidden trouble: Crural hand board contact is built receive not neat; 2, board end ministry did not use crural hand band of galvanization steel wire two. 3, existence of board end ministry sets upright crural hand to breakSafe hidden trouble: Crural hand board contact office space is too large, easy happening step empty riskSafe hidden trouble: Fore-and-aft level lever is not right receive, not with establish lever to buckle receiveSafe hidden trouble: Crural hand board probe length is too long, board two end were not secured reliably with bearing leverSafe hidden trouble: Fore-and-aft level lever is demolishedSafe hidden trouble: Dangerous carry scaffold ground floor to did not undertake closing effectivelySafe hidden trouble: Wear outside not even if the setting is transverse sweep the floor leverSafe hidden trouble: Wear outside even the wall anchorage solid not 10 centimeter fight obligate slippery lengthSafe hidden trouble: Scaffold lever upright ministry buckles a cover board brim and lever to carry a distance to be not worth 10 centimeterSafe hidden trouble: Not every other 10m will wear body and structure to undertake closing with safe plain netSafe hidden trouble: Dangerous carry scaffold to hang solid of the anchor that pick a surname to use spot welding consolidate, existence structure bears force riskSafe hidden trouble: Scaffold establishs lever to be in synchronism to be crossed together to contact insideSafe hidden trouble: The side outside scaffold establishs a face to did not set network of An Mi eyeSafe hidden trouble: Lever of by the waist of scaffold part position not be well versed inSafe hidden trouble: Synchronism of existence of connect of horizontal vertical lever is crossed together inside | | |