Zida zamakina a block zimakhala ndi kuthekera kwakukulu ku China. Kupambana kokhala Wopanga Makina Opangira Block kumadalira kukhwima kwaukadaulo, mtundu wa zida zamakina a block, kupambana kwa ogwira ntchito, komanso kutsata nzeru.
Tagwirizana ndi makampani ambiri, koma kampaniyi imachita makasitomala moona mtima. Ali ndi luso lamphamvu komanso zinthu zabwino kwambiri. Ndi mnzathu amene takhala tikumukhulupirira.