???涓?按绠℃?姘村?浠ョ?浠ヤ????瑙e?锛?br>???1??????PVC??按绠$?璇??灏卞?浠ュ?涔颁??剐VC??按绠℃???繁?ワ???????????圭?瀛?????????e?濂??绠″????绔??浣垮?澶??涓????????缃??濂戒??ュ????澶??涓?釜?e?榻?钩锛?娇瀹??濂借?澶???达??跺?????ュ?杩??绔??锛?娇涓ょ??芥?涓????氦??????绂花?垮害)?跺???????涓??锛??PVC?舵按娑???ㄧ??ョ?涓ょ???晶涓?袱涓??姘寸????渚с?br>???2???浠ヤ拱?叉按?跺甫?ヤ慨琛ヤ?姘寸?锛?氨缂??琛??锛???ㄧ?娴??姘村???按娉ユ?涓??灏辫?浜??br>???3???涓??????告?杈?ソ涓??锛???????繁涓??澶???????br>
姝ら?棰??婧?? http://ask.jia.com/a-388064.html