Liaocheng city TongDuoBao construction equipment Co.,Ltd. is the first scientific research development and production large-scale sales co***ny in China. Our co***ny is divided into two branch co***nies: One co***ny specializes in concrete pump rubber hose fittings for concrete pumps, The size are 2",2.5",3",4",5",6",length can be 1 to 12 meters, Two layers and four layers steel wire reinforced, We can produce according to your requirments. The second co***ny specializes in producing concrete...
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