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Polyurethane is a new chemical material with superb performance.
聚氨酯是一种性能优异的化工新材料。
youdao
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Factory with the production of a variety of polyurethane insulation board sandwich.
本厂具有生产各种规格的聚胺脂夹心保温板。
youdao
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Factory with the production of a variety of polyurethane insulation board sandwich.
本厂具有生产各种规格的聚胺脂夹心保温板。
youdao