oil refineries in nigeria problems

what is the qa process for an oil refinery like in Nigeria

• Usage: Peanut, Sunflower, Soybean, Castor, Rapeseed, Sesame, cooking, Copra, Hemp, Grape Seeds, Shea Nut, Safflower, Germ, Seeds, , Oil
• Type: small scale edible oil refining machine, mini crude oil refinery plant
• Automatic Grade: Automatic
• Production Capacity: 1TPD-20TPD
• Model Number: 6YY-260
• Certification: ISO9001-2008
• Color: Silver or others
• Production condition: One to three staffs
• Material: Carbon steel, stainless steel
• Raw Material: Suitable for soybean, seed, peanut, etc.
• Export markets: Europe, Southeast Asia, Africa, etc
• Work principle: Mechanical principle
• Warranty period: One year