Nyob ruaj ruaj hydraulic dock leveler ramp yog tus choj ntawm lub rooj thauj khoom thiab tsheb thauj khoom, ua rau forklift load thiab tshem tawm sai.Nyob ruaj ruaj platform thauj khoom dock leveler yard ramp tuaj yeem kho qhov siab raws li cov qauv tsheb sib txawv thiab lub thawv wagon hloov hauv cov txheej txheem ntawm kev thauj khoom thiab tshem tawm.