4399视频

主營新材料(liao)、輕(qing)質材料(liao)的技術(shu)(shu)開(kai)發(fa)，新型建(jian)筑材料(liao)、隔墻(qiang)板(ban)、保溫板(ban)、復合板(ban)、五金產品、機械(xie)設備的技術(shu)(shu)開(kai)發(fa)、生(sheng)產、銷售及技術(shu)(shu)推廣，室(shi)內外裝飾裝修(xiu)工(gong)(gong)(gong)程(cheng)的設計(ji)、施工(gong)(gong)(gong)，房屋建(jian)筑工(gong)(gong)(gong)程(cheng)、土木(mu)工(gong)(gong)(gong)程(cheng)施工(gong)(gong)(gong)，建(jian)筑工(gong)(gong)(gong)程(cheng)技術(shu)(shu)開(kai)發(fa)、技術(shu)(shu)服務(wu)，貨物及技術(shu)(shu)進出口