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Drilling taub hau

Drilling lub taub hau yog rau drilling qhov ntawm cov ntawv hlau.Txoj kab uas hla ntawm lub qhov, koj tuaj yeem xaiv qhov sib txawv ntawm 0-20mm.Lub thickness tuaj yeem ncav cuag 50mm.

ghdfg (1)


Post lub sij hawm: Sep-20-2019