Hengshui Weijia Petroleum Equipment Manufacturing Co., Ltd. ke khoebo e kopanetsoeng pakeng tsa Canada Westcan Oilfield Supply Ltd le Jizhou Zhongjia Rubber Products Co., Ltd. Khampani e latela ka tieo litekanyetso tsa API ho etsa lihlahisoa tse sebelisoang masimong a oli. Sehlahisoa se rometsoe linaheng tse fetang 20 le libaka. Tšebeliso e sebetsang ea mosebetsi e pakile hore boleng ba lihlahisoa tsa rona bo ka tšeptjoa.

Lihlahisoa tse ka sehloohong ke tse latelang: Tubing le Casing, Manonyeletso a Pup Pup, Manonyeletso a Pup a Perforated, Tubing Coupling, Casing Pup Joints, Casing Coupling, Crossovers, Swages, Pump Seating Nipple, Bull Plug, Tubing Thread Protectors.

U tla fumana boleng bo ka tšeptjoang le bo tsitsitseng. Re labalabela ho sebetsa le metsoalle e tsoang lefats'eng lohle.