Kev paub

Cov xwm txheej rau kev xaiv choj cranes thiab nqa lub cev muaj zog

Choj cranes tau siv dav hauv cov chaw tsim khoom, tsev khaws khoom, chaw khaws khoom thiab lwm qhov chaw nqa khoom. Nws yog txwv tsis pub siv lawv nyob rau hauv flammable, explosiv

Txoj kev ntawm kev tuav lub Boom Failure ntawm Choj Crane