?仲甲醛
...仲甲醛;聚甲醛;固体甲醛;多聚甲醇;多聚甲醛;聚合甲醛;聚蚁醛;聚氧化甲烯;Paraformaldehyde;Polyoxymethylene;aldacide;flo-mor;formagene;formaldehyde polymer;oilstop, halowax;paraform;paraformaldehydum;paraformic aldehyde;polyformaldehyde;polymerised formaldehyde;polyoxymethylene glycol;Polymerized formaldehyde;paraformaldehyde(as impurity only;paraformaldehyde(asimpurityonly;nolon...