| Indawo yemvelaphi: | eTshayina |
| Igama lebrand: | JCDRILL |
| Inombolo yoMfanekiso: | 146, 168, 178, 183, 194, 219, 245, 273, 325, 377 |
| Isiqinisekiso: | CE,ISO |
I-Concentric - Inkqubo ye-Symmetric Casing yenzelwe ukomba kunye nokufaka umngxuma ngaxeshanye kwiimeko ezingazinzanga.Intwana yomqhubi idityaniswe nomsesane owanelisayo okanye umsesane ophinda usetyenziswe yenza uyilo olupheleleyo lwentloko yobuso ephucula kakhulu izinga lokungena kunye nokuthe ngqo komngxuma wokomba.I-grooves yangaphakathi yokugungxula kunye nezicathulo ze-casing ezakhelwe ngaphakathi zinika isitywina esilungileyo kwiqhosha lomngxuma wokubhoboza, kwaye ngaloo ndlela kuncitshiswe ukuphazamiseka kokujikeleza komngxuma wokugaya.
| Ubuncinci boMyinge woMyalelo | N / A |
| Ixabiso | |
| Iinkcukacha zokuPakisha | Ipakethe yokuThunyelelwa koMgangatho wokuThunyelwa ngaphandle |
| Ixesha lokuzisa | iintsuku ezisi-7 |
| Immimiselo yokuhlawula | T/T |
| Supply Ability | Ngokusekelwe kuMyalelo oneenkcukacha |
