A.UN1056B.UN1057C.UN1055D.UN1075
A.危險(xiǎn)說(shuō)明B.防范說(shuō)明C.產(chǎn)品標(biāo)識(shí)符D.供應(yīng)商標(biāo)識(shí)
A.閉口鋼桶B.閉口塑料桶C.開(kāi)口鋼桶D.開(kāi)口塑料桶