1. Ndife oyamba kugulitsa zothandizira pa SINOPEC ndi CNPC. Makasitomala athu akunja makamaka amachokera ku America, Central Asia, Russia, Southeast Asia, Middle East, etc.
2. Makola oyandama amayikidwa kulumikizana kumodzi mbali zitatu pamwamba pa nsapato yolondolera kapena nsapato yoyandama. Amapereka mpando wamapulogalamu a simenti, pulagi yotsikirako yomwe idapumulidwira kutsogolo kwa simenti ndi pulagi yapamwamba kumbuyo kwaulere wambiri.
3. API 5CT Casing Float Collar Ndi nsapato Zoyandama.