黄色三级片视频

天津(jin)市大(da)地(di)工(gong)(gong)(gong)貿有(you)限(xian)公(gong)(gong)司（天津(jin)中(zhong)(zhong)(zhong)鋼(gang)(gang)(gang)聯(lian)達鋼(gang)(gang)(gang)管(guan)(guan)(guan)銷售有(you)限(xian)公(gong)(gong)司）022-84892002是(shi)生(sheng)產(chan)(chan)、經(jing)營、銷售、服務為(wei)一體的(de)無(wu)(wu)縫(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)制(zhi)造(zao)企業(ye)(ye)(ye)。公(gong)(gong)司主(zhu)要產(chan)(chan)品(pin)(pin)有(you):結構用無(wu)(wu)縫(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、輸送流體用無(wu)(wu)縫(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、低中(zhong)(zhong)(zhong)壓(ya)鍋爐用無(wu)(wu)縫(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、高壓(ya)鍋爐用無(wu)(wu)縫(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)及石油裂(lie)化、高壓(ya)化肥、船舶用無(wu)(wu)縫(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)等(deng)(deng)符合國(guo)(guo)(guo)家產(chan)(chan)業(ye)(ye)(ye)政(zheng)策(ce)的(de)優質(zhi)(zhi)無(wu)(wu)縫(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)。公(gong)(gong)司始終把握生(sheng)產(chan)(chan)過程的(de)質(zhi)(zhi)量(liang)控(kong)制(zhi)及最終產(chan)(chan)品(pin)(pin)的(de)檢驗,已獲(huo)得(de)國(guo)(guo)(guo)家質(zhi)(zhi)檢總局頒發的(de)壓(ya)力(li)管(guan)(guan)(guan)道元件“生(sheng)產(chan)(chan)許可證(zheng)”。 2010年順利(li)通過質(zhi)(zhi)量(liang)認證(zheng)中(zhong)(zhong)(zhong)心復評(ping)、換版審核工(gong)(gong)(gong)作(zuo)，有(you)效運(yun)行GB/T19001-2008 idtISO9001:2008標準，并榮獲(huo)了(le)《中(zhong)(zhong)(zhong)國(guo)(guo)(guo)知(zhi)(zhi)名(ming)(ming)(ming)品(pin)(pin)牌》《國(guo)(guo)(guo)家合格評(ping)定質(zhi)(zhi)量(liang)信得(de)過產(chan)(chan)品(pin)(pin)》《質(zhi)(zhi)量(liang)、服務、信譽AAA品(pin)(pin)牌》和(he)《中(zhong)(zhong)(zhong)國(guo)(guo)(guo)名(ming)(ming)(ming)優產(chan)(chan)品(pin)(pin)》稱(cheng)號。公(gong)(gong)司系(xi)國(guo)(guo)(guo)內(nei)知(zhi)(zhi)名(ming)(ming)(ming)的(de)無(wu)(wu)縫(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)專業(ye)(ye)(ye)生(sheng)產(chan)(chan)企業(ye)(ye)(ye)。大(da)地(di)牌無(wu)(wu)縫(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)系(xi)列產(chan)(chan)品(pin)(pin),外(wai)型優良、性能穩定,在國(guo)(guo)(guo)內(nei)石油、化工(gong)(gong)(gong)、鐵路、水(shui)電、礦山、機械、汽車、城(cheng)建(jian)等(deng)(deng)許多重點(dian)工(gong)(gong)(gong)程項目建(jian)設(she)中(zhong)(zhong)(zhong)廣泛選用,并與這(zhe)些國(guo)(guo)(guo)家基礎(chu)工(gong)(gong)(gong)業(ye)(ye)(ye)行業(ye)(ye)(ye)的(de)生(sheng)產(chan)(chan)廠家建(jian)立了(le)牢(lao)固的(de)上下紐帶的(de)供需關系(xi),產(chan)(chan)品(pin)(pin)銷往全國(guo)(guo)(guo)各地(di)。