Qingdao Qinqingzai Water Supply Equipment Co., Ltd. - Qingdao, China

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100% Water Pressure Test Class C Ductile Cast Iron Pipes With Lock Joint,Website:http://www.qqzpipe.com,Ductile Iron Pipe With Restrained Joint
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100% Water Pressure Test Ductile Iron Double Flange Pipe With Puddle Flange,Website:http://www.qqzpipe.com,Double Flange Pipe
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 148

100% Water Pressure Test Ductile Cast Iron Double Flange Pipe,Website:http://www.qqzpipe.com,Double Flange Pipe
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 155