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铜氨纤维 tóngān xiānwéi
textile copper ammonia fiber; cuprammonium fiber; cuprene fiber; cuprene fibre; Cuprammonium rayon fiber; cupro fiber
铜氨纤维商名,意大利本伯格 tóngān xiānwéi
textile Bemberg
铜 氨纤维
: 5 phrases in 2 subjects
General1
Textile industry4