Lub hnab ntim khoom siv cov khoom siv tshiab PE raw khoom thiab cov khoom siv ntxiv kom ntseeg tau cov khoom zoo thiab kev ntseeg siab, thiab tib lub sijhawm nws yooj yim rau rov siv dua thiab ua tau raws li kev tiv thaiv ib puag ncig; lawv siv los tsim cov thawv ntim khoom, ntim khoom kho kom zoo nkauj, ntim tshuab luam ntawv, ntim thiab tsheb thauj mus los, thiab lwm yam kom tau raws li cov khoom ntim khoom. Cov hnab loj muaj xws li hlau, yas, iav, ceramics, ntawv, xyoob, cov nceb qus, fibers, tshuaj fibers, cov ntaub ntawv sib xyaw, thiab lwm yam, cov khoom ntim tseem ceeb, thiab cov khoom siv xws li coatings, adhesives, strapping, decoration, printing, lwm yam khoom siv.
Thaum siv cov hnab loj, thawj qhov uas yuav tsum tau saib xyuas yog qhov teeb meem kev nyab xeeb. Hauv cov txheej txheem ntawm kev siv, feem ntau muaj cov cuab yeej siv tshuab los nqa lub hnab loj. Lub sijhawm no, tsis muaj neeg taug kev tuaj yeem taug kev lossis sawv hauv qab lub hnab loj kom tsis txhob muaj kev phom sij. Thaum lub sij hawm hoisting Ceev faj tsis txhob rhuav lub hnab, tsis txhob thauj khoom ntau dhau thaum thauj khoom, tsis txhob co rov qab thiab tawm thaum lub sijhawm nqa nqa, thiab muab tso rau hauv lub tsheb kom ntsug li sai tau. Lub hnab loj tsis tuaj yeem raug rub rau hauv pem teb pob zeb thaum lub sijhawm tuav, uas yuav hnav lub hnab loj, thiab nws yuav muaj kev nyab xeeb dua thaum tuav thiab thauj; thaum tsim lub hnab loj, cov lag luam yuav tsum xav txog qhov kev xav tau thiab kev siv ntawm cov neeg siv khoom, Nws tseem yuav tsum tau txiav txim siab seb lub hnab ntim khoom puas yuav siv los tuav cov zaub mov, thiab nws yuav tsum tsis muaj teeb meem rau cov khoom noj. Yog tias tsim nyog khaws cia rau sab nraum zoov, lub hnab loj yuav tsum tau muab tso rau ntawm lub txee, thiab lub hnab loj yuav tsum tau nruj nreem npog nrog opaque shed ntaub. Tom qab siv, lub hnab loj yuav tsum tau muab qhwv nrog daim ntawv los yog opaque shed ntaub thiab muab cia rau hauv ib qho chaw ventilated.