Lub tshuab ua tiav raws li GMP cov kev xav tau tshuaj, muaj kev noj tsawg, tsis muaj kuab lom, kev ruaj ntseg.Nws tuaj yeem ua tiav cov txheej txheem ntawm kev sib tov, humidifying, granulating thiab lwm yam nyob rau hauv ib lub sij hawm, haum rau tshuaj, zaub mov, tshuaj thiab lwm yam lag luam.Thiab nws yog 4-5 zaug siab dua li cov txheej txheem ib txwm, uas yog xav txog li 2 feeb ntawm kev sib xyaw qhuav thiab 1-4 feeb ntawm granulation rau txhua pawg.