Crane nplai, tseem hu ua dai nplai, nuv nplai thiab lwm yam, yog cov cuab yeej ntsuas uas ua rau cov khoom hauv lub xeev raug tshem tawm los ntsuas lawv qhov hnyav (qhov hnyav). Ua raws li cov qauv kev lag luam tshiab kawg GB / T 11883-2002, suav nrog OIML Ⅲ chav ntsuas. Crane nplai feem ntau yog siv rau hauv steel, metallurgy, factories thiab mines, cargo chaw nres tsheb, logistics, kev lag luam, kev cob qhia, thiab lwm yam nyob rau hauv lub loading thiab unloading, tsheb thauj mus los, kev ntsuas, kev sib haum xeeb thiab lwm yam yuav tsum tau. Cov qauv yog: 1T, 2T, 3T, 5T, 10T, 20T, 30T, 50T, 100T, 150T, 200T, thiab lwm yam.