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Qianyang Economic Development Zone, Donggang, Liaoning,Dandong,Liaoning,China China
联系人 Fang Liu
办公地址 Qianyang Economic Development Zone, Donggang, Liaoning, Dandong, Liaoning
Adding Barite powder is the effective measure to increase the mud gravity. we are the manufacturer in China
Plastic Drilling Beads: 1."miniature bearing", 2.becomes the lubrication, 3.friction reduction,
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