Xov xwm
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Kub muag khoom pom zoo - nqis lub qhov laum
Lub qhov laum hauv qab yog hu ua down the hole laum vim nws siv rauj thiab laum me ntsis uas tau faus rau hauv lub qhov hauv qab kom cuam tshuam thiab tawg pob zeb.Nws yog dav siv hauv cov mines hlau, hydropower, tsheb thauj mus los, cov khoom siv hauv tsev, chaw nres nkoj thiab kev tiv thaiv hauv tebchaws.Lub down ...Nyeem ntxiv -
Vim li cas thiaj xaiv txoj kab uas hla loj hauv lub qhov drilling cuab yeej?
Thaum nws los txog rau qhov chaw ua haujlwm mining, koj yuav tsum muaj daim duab hauv koj lub siab: lub suab nrov nrov thiab cov plua plav ya.Yog tias koj saib peb qhov chaw tsim kho, koj yuav pom tias nws yog qhov zoo tiag tiag uas yog tus txiv neej nyob ntsiag to, refreshing thiab zoo nkauj.Qhov no yog qhov kev tsim kho loj tshaj plaws ntawm peb D ...Nyeem ntxiv -
Rov qab Circulation DTH Rauj Drilling Technique
Cov txheej txheem rov qab DTH rauj drilling txheej txheem yog ib feem tseem ceeb ntawm Multi-Tech cua drilling tshuab, thiab tseem ceeb tshaj, nws yog ib qho kev tawg loj ntawm huab cua drilling tshuab.Nws yog ua ke nrog DTH cuam tshuam cov pob zeb tawg, yaug nruab nrab rov qab ncig thiab ...Nyeem ntxiv