Yashinzwe mu 2004, Guanghan N&D Carbide Co Ltd ni umwe mu bakora inganda zikura vuba kandi zikomeye mu Bushinwa zikorana na karubide ya tungsten.
Dufite ubuhanga bwo gukora igice kinini cyo kwambara kubucukuzi bwa peteroli na gaze, kugenzura imigezi no guca inganda.