4399视频

新材(cai)料(liao)(liao)技術研發；有(you)色(se)(se)金(jin)屬(shu)壓(ya)延(yan)加工；金(jin)屬(shu)結構制(zhi)(zhi)造(zao)(zao)；金(jin)屬(shu)制(zhi)(zhi)品(pin)研發；安全、消防(fang)用金(jin)屬(shu)制(zhi)(zhi)品(pin)制(zhi)(zhi)造(zao)(zao)；有(you)色(se)(se)金(jin)屬(shu)合金(jin)制(zhi)(zhi)造(zao)(zao)；金(jin)屬(shu)材(cai)料(liao)(liao)制(zhi)(zhi)造(zao)(zao)；配(pei)電(dian)開關控(kong)制(zhi)(zhi)設備制(zhi)(zhi)造(zao)(zao)；金(jin)屬(shu)制(zhi)(zhi)品(pin)銷售(shou)(shou)；有(you)色(se)(se)金(jin)屬(shu)合金(jin)銷售(shou)(shou)；新型金(jin)屬(shu)功(gong)能(neng)材(cai)料(liao)(liao)銷售(shou)(shou)；金(jin)屬(shu)結構銷售(shou)(shou)；建(jian)筑材(cai)料(liao)(liao)銷售(shou)(shou)；輕質建(jian)筑材(cai)料(liao)(liao)銷售(shou)(shou)；防(fang)腐材(cai)料(liao)(liao)銷售(shou)(shou)；密封用填料(liao)(liao)銷售(shou)(shou)。（除依(yi)法須經(jing)批(pi)準的項目外，憑(ping)營業(ye)執照依(yi)法自(zi)主開展經(jing)營活動）