大连中道贸易有限公司是集生产和贸易为一体的综合贸易公司，自1997年成立以来，产品销往世界各地，并获得客户的良好赞誉。 现公司主要产品包括如下系列： 1.No-hub fitting & pipe according to CISPI301 standard, at same time we also can supply the all size of coupling which is suitable for No-hub fitting & pipe. 2.No-hub fitting & pipe according to EN877 standard 3.Coupling for no-hub fitting & pipe 4.Ductile iron fitting according to BS4772/ISO2531, AWWA C110/153 standard 5.Va...