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Hais txog lub suab ntawm pob zeb drilling cuab yeej

Thaum tib neeg nkag mus rau hauv lub xyoo pua 18th, Thawj Kev Lag Luam Kev Lag Luam tau coj tsis yog kev hloov pauv thev naus laus zis nkaus xwb tab sis kuj tseem muaj kev hloov pauv hauv zej zog, ua rau muaj kev hloov pauv hauv lub sijhawm uas cov tshuab pib hloov pauv kev siv zog. Txij thaum ntawd los, lub pob zeb drilling thiab excavation kev lag luam tau nce mus rau qhov nrawm dua, ruaj khov dua, thiab siv tau zoo. Thaum cov txheej txheem no, ntau cov ntaub ntawv xov rau

Dab tsi drilling tshuab koj yuav tsum xaiv?

Dab tsi drilling tshuab koj yuav tsum xaiv?

Mus rau Shaoshan nrog cov neeg European

Mus rau Shaoshan nrog cov neeg European

Kev tshawb nrhiav thiab kev siv cov cuab yeej Fastener kom ntxaws

Kev tshawb nrhiav thiab kev siv cov cuab yeej Fastener kom ntxaws