Positive uxinzelelo iqokobhe uhlobo iinjini uqhushumbo-proof zidla ngokusetyenziswa kwindawo ezinobungozi ugqabhuko-dubulo, ezifana ishishini petrochemical, imigodi yamalahle, ubume uthuli, njl. Umsebenzi ophambili wesixhobo sokucoca kukuthintela irhasi eqhumayo okanye uthuli ukuba luqokeleleke ngaphakathi kwindlu yeenjini. , th...
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