A.45%~55% B.50%~60% C.55%~65% D.65%~75% E.70%~85%
A.0~-28℃ B.0~-31℃ C.0~-32℃ D.0~-33℃
A.復(fù)合層 B.無(wú)復(fù)合層 C.用纖維單面復(fù)合 D.織物內(nèi)增強(qiáng)