Khaws rau hauv qhov chaw txias, qhuav thiab zoo-ventilated warehouse
Khaws kom deb ntawm hluav taws thiab cua sov
Tiv thaiv tshav ntuj ncaj qha
Ntim sealing
Yuav tsum tau muab cais tawm ntawm cov kua qaub thiab cov tshuaj uas siv tau, thiab tsis txhob sib xyaw cia
Qhov chaw cia khoom yuav tsum tau nruab nrog cov ntaub ntawv tsim nyog kom muaj qhov to