Shandong TongDuoBao mechanical equipment Co., Ltd. is the first scientific research development and production large-scale sales company in China. Our company covers an area of 15000 square meters and our factory building covers an area of 10000 square meters.






Our company is divided into three branch companies: One company specializes in concrete pump rubber hose fittings for concrete pumps (sandblasting hose,spray hose,concrete pump hose),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.

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