所有進(jin)出口包(bao)(bao)裝(zhuang)箱(xiang)必須要有真空(kong)包(bao)(bao)裝(zhuang)，其工(gong)藝(yi)特點為(wei)工(gong)件(jian)與木箱(xiang)之(zhi)間增加一(yi)只真空(kong)包(bao)(bao)裝(zhuang)套，通(tong)常為(wei)鋁(lv)泊(bo)紙，并加上(shang)幾層緩沖材(cai)料，真空(kong)包(bao)(bao)裝(zhuang)是(shi)(shi)將包(bao)(bao)裝(zhuang)袋(dai)內(nei)抽(chou)成低真空(kong)后，再行(xing)(xing)封口。經真空(kong)包(bao)(bao)裝(zhuang)后的產品可(ke)縮小(xiao)體積；使包(bao)(bao)裝(zhuang)物品達到防潮、防霉、防污染、防氧(yang)化、防銹(xiu)的目次(ci)。目前國(guo)際運輸多為(wei)海運，一(yi)般(ban)在海上(shang)漂泊(bo)時(shi)間為(wei)10~50天。因(yin)各(ge)地濕(shi)度(du)、溫度(du)不同，同時(shi)各(ge)大(da)(da)洋內(nei)濕(shi)度(du)較(jiao)大(da)(da)，工(gong)件(jian)極容易(yi)生(sheng)銹(xiu)，故(gu)它是(shi)(shi)一(yi)種切實(shi)有效，行(xing)(xing)之(zhi)可(ke)行(xing)(xing)的長途防生(sheng)銹(xiu)措施。