I-LANGFANG WANMAO HEAT INSULUTION MATERIAL CO., LTD ibekwe eBeijing, eTianjin, iBohai Economic Circle entliziyweni, yimveliso yobungcali kunye nokuthengiswa kwePVC yentsimbi yentsimbi yokumisa inkqubo yeshishini, eyasekwa ngo-1991, utyalo-mali olupheleleyo lwe-20 million yuan , ithatha indawo ye-20,000 square metres. Inkampani ngoku inomgca wemveliso ohamba phambili emhlabeni 36 , izixhobo eziphambili , ifomula yenzululwazi , abanezakhono .