所有進出口包(bao)裝(zhuang)箱(xiang)必須要(yao)有真空(kong)包(bao)裝(zhuang)，其(qi)工(gong)(gong)(gong)藝特點為(wei)(wei)工(gong)(gong)(gong)件(jian)與(yu)木箱(xiang)之間(jian)增加一只(zhi)真空(kong)包(bao)裝(zhuang)套，通常為(wei)(wei)鋁(lv)泊(bo)紙，并加上幾層緩沖(chong)材料，真空(kong)包(bao)裝(zhuang)是將包(bao)裝(zhuang)袋內抽成低真空(kong)后，再行(xing)封口。經真空(kong)包(bao)裝(zhuang)后的產品可(ke)縮小體積；使包(bao)裝(zhuang)物品達到防潮、防霉、防污染(ran)、防氧化、防銹(xiu)的目次(ci)。目前國際運輸(shu)多為(wei)(wei)海運，一般在(zai)海上漂泊(bo)時間(jian)為(wei)(wei)10~50天。因(yin)各地(di)濕度、溫度不同(tong)，同(tong)時各大洋內濕度較大，工(gong)(gong)(gong)件(jian)極容易生銹(xiu)，故(gu)它(ta)是一種切實有效，行(xing)之可(ke)行(xing)的長途防生銹(xiu)措施(shi)。