Kade nna ai aten hta, n san seng ai mawdaw ni kaw na galaw ai rubber asphalt hpe Beijing{{1} mare na Yizhuang Development Zone hta lam kaba 60 jan de htu tawn da sai.
Waste tyre ni hpe "black n san seng ai{{0}"" N san seng ai nhprang arai ni hpe hkrak wan hkru shangun ai gaw, zinc, cadmium, nickel hte lead. zawn re ai dioxins hte n-gun ja ai nhprang dat ni zawn re ai carcinogens ni hpe shapraw ya lu ai. mawdaw gau ai lam hta shim lum lam hte lam hkawm sa lam hpe grau kaja hkra galaw ya lu ai. dioxide dat dat ai lam 307 daram,000 tons ni.
Yizhuang Development Zone gaw lai wa sai shaning hta, Dingda Africa mungdan gaw, Mungkan ting na Rubber Asphalt Conference de, Mungkan ting na Rubber Asphalt Conference hpe galaw ai, Mungkan ting na Hkringmang Daju Award hpe jaw ai, Mungkan ting na grup yin makawp maga hpung hpe, ndai shawng ningnan lang na aten re. Asian ginra gaw ndai kumhpa hpe lu la sai. Dai hta n-ga, hpaw shabawn komiti gaw Asia. hta grup yin lam madun ai ginra langai sha re ai majaw, rawt jat galu kaba lam ginra hpe mung hpaw ninghtan wa sai.
Ya aten hta, Yizhuang rawt jat lam Zone hta n-ga, Mungkan Expo de Jingli Expressway hte Beijing Daxing International nbungli pa a kata lam ni gaw, n-gun n rawng ai arai ni hte rubber asphalt hpe lang nna, n-gun n rawng ai arung arai ni hpe n-gun n rawng ai hku jai lang wa sai..