China Far Eastern Industry Co., Limited ที่ ke k'hamphani ea theknoloji e hlahisang Petroleum, lisebelisoa tsa petro-chemical le lisebelisoa.Mechini ea Weifang Bochabela bo Hōle e sebetsa ka ho khetheha lipatlisisong le tl o tl บิต li-tricone, บิต PDC, ที่เปิดรู HDD, เครื่องตัดลูกกลิ้ง le lisebelisoa tse amanang le tsona, masimo a kopo a kenyelletsa ho cheka seliba sa oli, ho cheka seliba sa khase, ho chera geo seliba, seliba, lipatlisiso tsa jeoloji, tlhahlobo ea metsi, ho cheka liliba tsa metsi, merero ea lipeipi tsa HDD le merero ea motheo