4399视频

碳化硼材(cai)料(liao)、碳化硅(gui)材(cai)料(liao)、陶(tao)(tao)(tao)瓷(ci)材(cai)料(liao)、光電材(cai)料(liao)、晶體材(cai)料(liao)、發(fa)光材(cai)料(liao)、陶(tao)(tao)(tao)瓷(ci)制品(pin)、陶(tao)(tao)(tao)瓷(ci)元(yuan)器件、特種(zhong)(zhong)(zhong)玻璃、耐高溫(wen)材(cai)料(liao)、高純氧化鋁、冶金材(cai)料(liao)、特種(zhong)(zhong)(zhong)陶(tao)(tao)(tao)瓷(ci)燒結爐、特種(zhong)(zhong)(zhong)陶(tao)(tao)(tao)瓷(ci)加(jia)(jia)工(gong)(gong)設(she)備、特種(zhong)(zhong)(zhong)陶(tao)(tao)(tao)瓷(ci)原料(liao)制備及加(jia)(jia)工(gong)(gong)設(she)備、晶體材(cai)料(liao)制備及加(jia)(jia)工(gong)(gong)設(she)備、特種(zhong)(zhong)(zhong)高溫(wen)設(she)備的生(sheng)產、加(jia)(jia)工(gong)(gong)、銷售、技術(shu)研(yan)發(fa)、技術(shu)服務、技術(shu)咨詢(xun)（以上不(bu)(bu)含危險(xian)化學(xue)品(pin)）以及其(qi)他按法(fa)律(lv)、法(fa)規、國務院決定等規定未(wei)禁止和不(bu)(bu)需經營許可的項(xiang)目。