Zingwe zoyendera dzuwa nthawi zambiri zimakhala ndi kuwala kwadzuwa, ndipo zida zoyendera dzuwa zimagwiritsidwa ntchito m'malo ovuta kwambiri monga kutentha kwambiri komanso cheza cha ultraviolet.Ku Europe, masiku adzuwa amatha kupangitsa kutentha kwa malo ozungulira dzuwa mpaka 100 ° C.Pakali pano, PVC ndi zipangizo zosiyanasiyana tingagwiritse ntchito, mphira, T ...
Werengani zambiri