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Ukwakhiwa kwetonela
Indawo yokusebenza ephantsi komhlaba ihlala inzima, i-drilling rig yethu eshukumayo ukukunceda usebenze ngokukhuselekileyo. Ingqwalasela ekhethekileyo kufuneka ihlawulwe kumgangatho womoya kwindawo encinci yokusebenza phantsi komhlaba. Iicompressor zomoya zinokusetyenziswa njengomthombo wamandla we-pneumatic, ukucoca ...Funda ngokugqithisileyo
