Ngwongwo nke ọgụgụ isi anyị

*Ụzọ nke Ime Alloy Waya mkpanaka (Patent No.:ZL 201010518772.6).

*Ụdị akụrụngwa na usoro ya maka ịme ọla kọpa Alloy Belt site na nkwụnye ego ịgbasa (Patent No.:ZL 201210411177.1).

*Ụzọ nke akwadebe mgbasasa siri ike ọla kọpa na aluminom oxide (Patent No.: ZL 201310151407.X).