如何知道下管是水泥还是陶管?
所有跟帖:
• 美国的下水总管好像都用陶管.不过大量水稀释后就是水泥管也应没事.不能多用只为绝招.另一半法是加后倒入碱水来中和. -pa40- ♂ (61 bytes) () 10/29/2014 postreply 12:52:16
• 美国的下水总管好像都用陶管.不过大量水稀释后就是水泥管也应没事.不能多用只为绝招.另一半法是加后倒入碱水来中和. -pa40- ♂ (61 bytes) () 10/29/2014 postreply 12:52:16
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