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0571-88125597

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Grooves accessories10

The rubber seals, the high elongation cast ductile iron clamp and the high strength connecting bolts of Tongjiang brand connection are all manufactured in accordance with GB5135.11-2006. Each batch of products are tested by chemical and mechanical propert

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The rubber seals, the high elongation cast ductile iron clamp and the high strength connecting bolts of Tongjiang brand connection are all manufactured in accordance with GB5135.11-2006. Each batch of products are tested by chemical and mechanical propert

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