A ranar 3 ga Disamba, a yayin bikin 2021 Babban Taron Kasuwancin Kasuwancin Injin Gine-gine na rukunin masana'antar Shandong Heavy Industry, Shantui ya fitar da kayayyaki na hankali 12, gami da batir lantarki bulldozer da bulldozer mara matuki, don nuna sakamakon da aka samu a cikin canji zuwa masana'antu na fasaha.Rufe bulldozer, injinan hanya, da sassan lodi, waɗannan samfuran 12 sun ja hankalin mutane da yawa tare da fitattun wasanni da fasaha na zamani.