Ekukhiqizweni kwesikhunta, isixhumanisi sokubumba insimbi esingenasici sokukhokhisa sisesimweni esibalulekile. I-China namazwe amaningi emhlabeni ajwayele ukusebenzisa izindlela zokuphonsa ngokunemba kwinqubo yokukhiqiza, kufaka phakathi ukusakaza kwe-gypsum, ukuphonsa imali, ukusakaza imali, ukuphonsa imali okulahlekile, i-thermosetting resi ...