优等品就没有缺陷吗?

参考答案:

答案：由于陶瓷制品是各种原料经过高温烧成的产品，杂质、变形等缺陷不可能完全避免，国家标准也允许一定程度的缺陷存在。如表面质量，抛光砖优等品规定至少有95%的砖距"},{"id":1833665,"askid":9909047,"UserName":"anonymity","UserID":0,"AddDate":"/Date(1597228739207+0800)/","Status":1,"remark":"","getBilv":0,"VoteC