Aia ma Gongyi a he 200 mika wale nō mai ke kahua kaʻaahi.ʻO Wangda Machinery kahi kikowaena hana mīkini pōhaku ikaika ma Kina.Ma ke ʻano he lālā o China Bricks & Tiles Industrial Association, ua hoʻokumu ʻia ʻo Wangda ma 1972 me ka ʻoi aku o 40 mau makahiki i ka ʻike ma ke kahua o ka hana ʻana i ka mīkini brick.Ua hilinaʻi nui ʻia ʻo Wangda Brick Making Machine e nā mea kūʻai aku, ua kūʻai ʻia aku i ʻoi aku ma mua o iwakālua mau panalāʻau a me nā kaona o Kina a lawe ʻia aku i Kazakhstan, Mongolia, Russia, North Korea, Vietnam, Burma, India, Bangladesh, Iraq, etc.