以下是:内蒙古呼伦贝尔市卷板-卷板品牌的产品参数
产品参数 产品价格 3.5元-4.5元/kg 发货期限 2天 供货总量 50000kg 运费说明 电议 范围 卷板-卷板品牌供应范围覆盖内蒙古、呼和浩特市、包头市、乌海市、赤峰市、通辽市、鄂尔多斯市、呼伦贝尔市、乌兰察布市、兴安市、锡林郭勒市、阿拉善市等区域。 【钢昌】业务覆盖多领域场景,主营乌兰察布镀锌卷板、酸洗卷板厂家好厂家有担当、包头镀锌卷板、酸洗卷板厂家精挑细选好货、乌海镀锌卷板、酸洗卷板厂家当日价格、兴安镀锌卷板、酸洗卷板厂家认准大品牌厂家、鄂尔多斯镀锌卷板、酸洗卷板厂家专注细节专注品质、阿拉善镀锌卷板、酸洗卷板厂家把实惠留给您等产品服务。卷板-卷板品牌,钢昌实业(呼伦贝尔市分公司)shgcsy1654-3专业从事卷板-卷板品牌,联系人:王胜然,供应服务范围覆盖:内蒙古、呼和浩特市、包头市、乌海市、赤峰市、通辽市、鄂尔多斯市、呼伦贝尔市、乌兰察布市、兴安市、锡林郭勒市、阿拉善市,以下是卷板-卷板品牌的详细页面。 内蒙古自治区,呼伦贝尔市 1954年4月30日,撤销东部区行政公署 ,将原兴安盟和呼纳盟所辖地区合并,改称呼伦贝尔盟。呼伦贝尔市境内滨洲铁路和301国道贯通全市,拥有海拉尔、满洲里两个国际航空港,已开通至俄罗斯、蒙古国及北京、呼和浩特、哈尔滨、上海、广州等50余条国际国内航线;对外与俄罗斯和蒙古国毗邻,是中国仅有的一座中俄蒙三国交界城市,拥有满洲里、黑山头等8个口岸。人文历史悠久,是中国北方狩猎、游牧民族的重要发祥地。呼伦贝尔市是中国旅游城市、全国仅有的草原旅游重点开发地区、旅游业改革创新先行区,境内的呼伦贝尔大草原是世界四大草原之一和全国旅游二十胜景之一,曾入选森林城市,当选中国十佳冰雪旅游城市,入选物流枢纽承载城市,并被评为全国双拥模范城(县)。
为了给您提供更的卷板-卷板品牌产品信息,我们上传了的产品视频。看视频,选购不迷路。
以下是:内蒙古呼伦贝尔卷板-卷板品牌的图文介绍内蒙古呼伦贝尔钢昌实业有限公司依靠数字化管理,可变换多种生产 镀锌卷板,酸洗卷板厂家模式,能够高品质、率的解决大批量以及定制化生产要求。我们不断在 镀锌卷板,酸洗卷板厂家领域探求,注重前沿科技、创新和 镀锌卷板,酸洗卷板厂家产品研发,内蒙古呼伦贝尔钢昌实业有限公司注入源源不绝的新鲜生命力;致力为广大客户提供高品质、多元化的专业 镀锌卷板,酸洗卷板厂家产品和服务。内蒙古呼伦贝尔钢昌实业有限公司成长的过程,就是服务客户和客户一起不断成功的过程。我们用心做好每一件事,满怀信心迎接每一次的挑战。
冷轧板卷 低合金双相钢 0.5*1250*C 宝钢 HC340/590DP 宝钢库 0.6*1250*C 宝钢 HC340/590DP 宝钢库 0.7*1250*C 宝钢 HC340/590DP 宝钢库 0.8*1300*C 宝钢 HC340/590DP 宝钢库 0.9*1250*C 宝钢 HC340/590DP 宝钢库 1.0*1450*C 宝钢 HC340/590DP 宝钢库 1.1*1000*C 宝钢 HC340/590DP 宝钢库 1.2*1250*C 宝钢 HC340/590DP 宝钢库 1.25*1500*C 宝钢 HC340/590DP 宝钢库 1.3*1250*C 宝钢 HC340/590DP 宝钢库 1.5*1400*C 宝钢 HC340/590DP 宝钢库 1.6*1250*C 宝钢 HC340/590DP 宝钢库 1.8*1250*C 宝钢 HC340/590DP 宝钢库 2.0*1250*C 宝钢 HC340/590DP 宝钢库 2.5*1250*C 宝钢 HC340/590DP 宝钢库 3.0*1250*C 宝钢 HC340/590DP 宝钢库 上海钢昌实业有限公司成立于2011年,公司自成立之际,致力于为客户提供钢材产品采购的 解决方案,在为终端用户提供钢材加工、物流配送服务的同时,积累了丰富的营销管理经验,为公司今后发展奠定了坚实的基础。 公司主营宝钢及其旗下钢厂的产品,除此外,还销售国内外众多知名钢厂的产品, 品种包括:冷轧卷板、酸洗卷板、镀锌卷板、汽车钢卷板、电工钢卷板、电镀锌卷板、镀铝锌卷板、镀锡卷板、不锈钢卷板、彩涂卷板等;加工方面:纵切和开平精准度达到正负0.1毫米;物流方面:可到达国内大部分地区。 上海钢昌实业有限公司愿与您携手并进,期待您的莅临指导,欢迎您的来电垂询!
热轧卷板产品包括钢带(卷)及有其剪切而成的钢板。而钢带(卷)可以分为直发卷及精整卷(分卷、平整卷及纵切卷)。 主要产品: 热连轧按其材质、性能的不同可分为:普通碳素结构钢、低合金钢、合金钢。 按其用途的不同可分为:冷成型用钢、结构钢、汽车结构钢、耐腐蚀结构用钢、机械结构用钢、焊接气瓶及压力容器用钢、管线用钢等。 一般说明: 内蒙古呼伦贝尔热连轧钢板产品,钢种规格品种繁多,用途广泛,从一般的工程结构至汽车、桥梁、船舶、锅炉压力容器等制造,都得到大量使用。各种不同用途,对钢板的材质性能、表面质量及尺寸、外形精度等要求也各不相同,因此,必须对热轧钢板产品的品种、材质、特性及其用途有所了解,才能做到经济、合理利用。
钢材卷板牌号DC51D+Z50/50-M-FC-O,DC52D+Z50/50-M-FC-O DC53D+Z50/50-M-FC-ODC54D+Z50/50-M-FC-O DC56D+Z ,50/50-M-FC-O DC57D+Z50/50-M-FC-OHC180YD+Z, H180YD+Z ,HC220YD+Z,H220YD+Z,HC260YD+Z,H260YD+Z,B260LYD+Z,HC180BD+Z,H180BD+Z,HC220BD+Z,H220BD+Z,HC260BD+Z H260BD+Z,H300BD+Z,HC300BD+Z,HC260LAD+Z,H260LAD+Z,HC300LAD+Z,H300LAD+Z,HC340LAD+Z,H340LAD+Z,HC380LAD+Z,H380LAD+Z,HC420LAD+Z,H420LAD+Z,HC660XD+Z,HC250/450DPD+Z HC300/500DPD+Z,HC280/590DPD+Z,590YD+Z,440WD+Z,HC340/590DPD+Z,B340/590DPD+Z HC500/780DPD+Z,HC420/780DPD+Z,HC380/590TRD+Z,HC400/690TRD+Z,HC400/690TRD+Z,HC420/780TRD+Z,HC350/600CPD+Z,HC500/780CPD+Z,HC700/980CPD+Z,HD620/750CPD+Z,HD680/780CPD+Z,HD720/950CPD+Z,B650/1100G+Z,HC600/980QP+Z,HC550/980DP+Z,HC550/980DPD+Z+Z,HC800LA+Z,HC1150/1400MS+Z,HC1030/1300MS+Z,HC700/900MS+Z,B400/780DP+Z Q/BQB420-2009 DC51D+Z50/50-M-FC-O,Q/BQB420-2009 DC52D+Z50/50-M-FC-O,Q/BQB420-2009 DC53D+Z50/50-M-FC-O,Q/BQB420-2009 DC54D+Z50/50-M-FC-O,Q/BQB420-2009 DC55D+Z50/50-M-FC-O,Q/BQB420-2009 DC56D+Z 50/50-M-FC-O,Q/BQB420-2009 DC57D+Z50/50-M-FC-O,Q/BQB420-2009 HC180YD+Z,Q/BQB420-2009 H180YD+Z,Q/BQB420-2009 HC220YD+Z,Q/BQB420-2009 H220YD+Z,Q/BQB420-2009 HC260YD+Z,Q/BQB420-2009 H260YD+Z,Q/BQB420-2009 B260LYD+Z,Q/BQB420-2009 HC180BD+Z,Q/BQB420-2009 H180BD+Z,Q/BQB420-2009 HC220BD+Z Q/BQB420-2009 H220BD+Z,Q/BQB420-2009 HC260BD+Z Q/BQB420-2009 H260BD+Z,Q/BQB420-2009 H300BD+Z Q/BQB420-2009 HC300BD+Z,Q/BQB420-2009 HC260LAD+Z Q/BQB420-2009 H260LAD+Z,Q/BQB420-2009 HC300LAD+Z Q/BQB420-2009 H300LAD+Z,Q/BQB420-2009 HC340LAD+Z Q/BQB420-2009 H340LAD+Z,Q/BQB420-2009 HC380LAD+Z,Q/BQB420-2009 H380LAD+Z,Q/BQB420-2009 HC420LAD+Z,Q/BQB420-2009 H420LAD+Z,Q/BQB420-2009 HC660XD+Z Q/BQB420-2009 HC250/450DPD+Z,Q/BQB420-2009 HC300/500DPD+Z Q/BQB420-2009 HC280/590DPD+Z,Q/BQB420-2009 HC340/590DPD+Z Q/BQB420-2009 B340/590DPD+Z,Q/BQB420-2009 HC500/780DPD+Z Q/BQB420-2009 HC420/780DPD+Z,Q/BQB420-2009 HC380/590TRD+Z Q/BQB420-2009 HC400/690TRD+Z,Q/BQB420-2009 HC400/690TRD+Z Q/BQB420-2009 HC420/780TRD+Z,Q/BQB420-2009 HC350/600CPD+Z BQXH2009-022 590YD+Z 50/50-M-FB-O Q/BQB420-2009 HC500/780CPD+Z,Q/BQB420-2009 HC700/980CPD+Z Q/BQB420-2009 HD620/750CPD+Z,Q/BQB420-2009 HD680/780CPD+Z,Q/BQB420-2009 HD720/950CPD+Z,Q/BQB420-2009 B650/1100G+Z,Q/BQB420-2009 HC600/980QP+Z,Q/BQB420-2009 HC550/980DP+Z Q/BQB420-2009 HC550/980DPD+Z,Q/BQB420-2009 HC800LA+Z,Q/BQB420-2009 HC1150/1400MS+Z,Q/BQB420-2009 HC1030/1300MS+Z,Q/BQB420-2009 HC700/900MS+Z,Q/BQB420-2009 B400/780DP+Z 通用汽车钢 GMW2M-ST-S-CR1-HD40G40G-U GMW2M-ST-S-CR2-HD40G40G-U GMW2M-ST-S-CR3-HD40G40G-U GMW2M-ST-S-CR4-HD40G40G-U GMW2M-ST-S-CR5-HD40G40G-U GMW2M-ST-S-CR1-HD40G40G-U GMW2M-ST-S-CR1-HD90G90G-U GMW2M-ST-S-CR2-HD90G90G-U GMW2M-ST-S-CR3-HD90G90G-U GMW2M-ST-S-CR4-HD90G90G-U GMW2M-ST-S-CR5-HD90G90G-U GMW2M-ST-S-CR1-HD60G60G-U GMW2M-ST-S-CR2-HD60G60G-U GMW2M-ST-S-CR3-HD60G60G-U GMW2M-ST-S-CR4-HD60G60G-U GMW2M-ST-S-CR5-HD60G60G-U GMW2M-ST-S-CR1-HD70G70G-U GMW2M-ST-S-CR2-HD70G70G-U, GMW2M-ST-S-CR3-HD70G70G-U GMW2M-ST-S-CR4-HD70G70G-U , GMW2M-ST-S-CR5-HD70G70G-U GMW3032M-ST-S-270LA-HD60G60G-U, GMW3032M-ST-S-CR180B2-HD60G60G-U, GMW3032M-ST-S-210P-HD60G60G-U GMW3032M-ST-S-CR180IF-HD60G60G-U GMW3032M-ST-S-CR210IF-HD60G60G-U GMW3032M-ST-S-CR240IF-HD60G60G-U GMW3032M-ST-S-CR180B2-HD60G60G-U GMW3032M-ST-S-CR210B2-HD60G60G-U GMW3032M-ST-S-CR270B2-HD60G60G-U GMW3032M-ST-S-CR300B2-HD60G60G-U GMW3032M-ST-S-CR270LA-HD60G60G-U GMW3032M-ST-S-CR300LA-HD60G60G-U GMW3032M-ST-S-HR340LA-HD60G60G-U GMW3032M-ST-S-CR340LA-HD60G60G-U GMW3032M-ST-S-CR380LA-HD60G60G-U GMW3032M-ST-S-CR420LA-HD60G60G-U GMW3032M-ST-S-HR420LA-HD60G60G-U GMW3032M-ST-S-HR550LA-HD60G60G-U GMW3032M-ST-S-CR180IF-HD70G70G-U GMW3032M-ST-S-CR210IF-HD70G70G-U GMW3032M-ST-S-CR240IF-HD70G70G-U GMW3032M-ST-S-CR180B2-HD70G70G-U GMW3032M-ST-S-CR210B2-HD70G70G-U GMW3032M-ST-S-CR270B2-HD70G70G-U GMW3032M-ST-S-CR300B2-HD70G70G-U GMW3032M-ST-S-CR270LA-HD70G70G-U GMW3032M-ST-S-CR300LA-HD70G70G-U GMW3032M-ST-S-HR340LA-HD70G70G-U GMW3032M-ST-S-CR340LA-HD70G70G-U GMW3032M-ST-S-CR380LA-HD70G70G-U GMW3032M-ST-S-CR420LA-HD70G70G-U GMW3032M-ST-S-CR500LA-HD70G70G-U GMW3032M-ST-S-CR550LA-HD70G70G-U GMW3032M-ST-S-CR650LA-HD70G70G-U GMW3032M-ST-S-HR420LA-HD70G70G-U GMW3032M-ST-S-HR550LA-HD70G70G-U GMW3032M-ST-S-CR180P-HD70G70G-U GMW3032M-ST-S-CR240P-HD70G70G-U GMW3032M-ST-S-CR270P-HD70G70G-U GMW3032M-ST-S-CR180P-HD60G60G-U GMW3032M-ST-S-CR240P-HD60G60G-U GMW3032M-ST-S-CR270P-HD60G60G-U GMW2M-ST-S-CR1-HD50G50G-U GMW2M-ST-S-CR2-HD50G50G-U, GMW2M-ST-S-CR3-HD50G50G-U GMW2M-ST-S-CR4-HD50G50G-U , GMW2M-ST-S-CR5-HD50G50G-U GMW3032M-ST-S-250LA-HD50G50G-U, GMW3032M-ST-S-CR180B2-HD50G50G-U, GMW3032M-ST-S-210P-HD50G50G-U GMW3032M-ST-S-CR180IF-HD50G50G-U GMW3032M-ST-S-CR210IF-HD50G50G-U GMW3032M-ST-S-CR240IF-HD50G50G-U GMW3032M-ST-S-CR180B2-HD50G50G-U GMW3032M-ST-S-CR210B2-HD50G50G-U GMW3032M-ST-S-CR250B2-HD50G50G-U GMW3032M-ST-S-CR300B2-HD50G50G-U GMW3032M-ST-S-CR250LA-HD50G50G-U GMW3032M-ST-S-CR300LA-HD50G50G-U GMW3032M-ST-S-HR340LA-HD50G50G-U GMW3032M-ST-S-CR340LA-HD50G50G-U GMW3032M-ST-S-CR380LA-HD50G50G-U GMW3032M-ST-S-CR420LA-HD50G50G-U GMW3032M-ST-S-HR420LA-HD50G50G-U GMW3032M-ST-S-HR550LA-HD50G50G-U GMW3399M-ST-S-CR450T/250Y-DP-HD50G50G-U GMW3399M-ST-S-CR780T/420Y-DP-HD50G50G-U GMW3399M-ST-S-CR590T/280Y-DP-HD50G50G-U GMW3399M-ST-S-CR590T/340Y-DP-HD50G50G-U GMW3399M-ST-S-CR780T/420Y-DP-HD50G50G-U GMW3399M-ST-S-CR780T/500Y-DP-HD50G50G-U GMW3399M-ST-S-CR980T/550Y-DP-HD50G50G-U GMW3399M-ST-S-CR590T/380Y-TR-HD50G50G-U GMW3399M-ST-S-CR690T/410Y-TR-HD50G50G-U GMW3399M-ST-S-CR780T/440Y-TR-HD50G50G-U GMW3399M-ST-S-CR980T/500Y- MP-LCE HD50G50G GMW3399M-ST-S-CR450T/250Y-DP-HD60G60G-U GMW3399M-ST-S-CR780T/420Y-DP-HD60G60G-U GMW3399M-ST-S-CR590T/280Y-DP-HD60G60G-U GMW3399M-ST-S-CR590T/340Y-DP-HD60G60G-U GMW3399M-ST-S-CR780T/420Y-DP-HD60G60G-U GMW3399M-ST-S-CR780T/500Y-DP-HD60G60G-U GMW3399M-ST-S-CR980T/550Y-DP-HD60G60G-U GMW3399M-ST-S-CR590T/380Y-TR-HD60G60G-U GMW3399M-ST-S-CR690T/410Y-TR-HD60G60G-U GMW3399M-ST-S-CR780T/440Y-TR-HD60G60G-U GMW3399M-ST-S-CR980T/700Y- MP-LCE HD60G60G GMW3399M-ST-S-CR450T/250Y-DP-HD70G70G-U GMW3399M-ST-S-CR780T/420Y-DP-HD70G70G-U GMW3399M-ST-S-CR590T/280Y-DP-HD70G70G-U GMW3399M-ST-S-CR590T/340Y-DP-HD70G70G-U GMW3399M-ST-S-CR780T/420Y-DP-HD70G70G-U GMW3399M-ST-S-CR780T/500Y-DP-HD70G70G-U GMW3399M-ST-S-CR980T/550Y-DP-HD70G70G-U GMW3399M-ST-S-CR590T/380Y-TR-HD70G70G-U GMW3399M-ST-S-CR690T/410Y-TR-HD70G70G-U GMW3399M-ST-S-CR780T/440Y-TR-HD70G70G-U GMW3399M-ST-S-CR980T/700Y- MP-LCE HD70G70G GMW3399M-ST-S-CR450T/250Y-DP GMW3399M-ST-S-CR490T/290Y-DP GMW3399M-ST-S-CR590T/280Y-DP GMW3399M-ST-S-CR590T/340Y-DP GMW3399M-ST-S-CR690T/550Y-DP GMW3399M-ST-S-CR780T/420Y-DP GMW3399M-ST-S-CR780T/500Y-DP GMW3399M-ST-S-CR980T/550Y-DP GMW3399M-ST-S-CR980T/700Y-DP GMW2M-ST-S CR1 UNCOATED GMW2M-ST-S CR2 UNCOATED,GMW2M-ST-S CR3 UNCOATED GMW2M-ST-S CR4 UNCOATED,GMW2M-ST-S CR5 UNCOATED GMW2M-ST-S CR1 UNCOATED, GMW3032M-ST-S-CR180B2-UNCOATED-U GMW3032M-ST-S-210P-UNCOATED-U GMW3032M-ST-S-CR180IF-UNCOATED-U GMW3032M-ST-S-CR210IF-UNCOATED-U GMW3032M-ST-S-CR240IF-HUNCOATED-U GMW3032M-ST-S-CR180B2-UNCOATED-U GMW3032M-ST-S-CR210B2-UNCOATED-U GMW3032M-ST-S-CR250B2-UNCOATED-U GMW3032M-ST-S-CR300B2-UNCOATED-U GMW3032M-ST-S-CR250LA-UNCOATED-U GMW3032M-ST-S-CR300LA-UNCOATED-U GMW3032M-ST-S-HR340LA-UNCOATED-U GMW3032M-ST-S-CR340LA-UNCOATED-U GMW3032M-ST-S-CR380LA-UNCOATED-U GMW3032M-ST-S-CR420LA-UNCOATED-U GMW3032M-ST-S-HR420LA-UNCOATED-U GMW3032M-ST-S-HR550LA-UNCOATED-U GMW3032M-ST-S-HR650LA-UNCOATED-U ,GMW2M-ST-S CR1 UNCOATED,GMW2M-ST-S CR1 GMW11M EG50G50GE ,GMW2M-ST-S CR2 GMW11M EG50G50GE ,GMW2M-ST-S CR3 GMW11M EG50G50GE ,GMW2M-ST-S CR4 GMW11M EG50G50GE ,GMW2M-ST-S CR5 GMW11M EG50G50GE ,GMW2M-ST-S CR1 GMW11M EG60G60GE ,GMW2M-ST-S CR2 GMW11M EG60G60GE ,GMW2M-ST-S CR3 GMW11M EG60G60GE ,GMW2M-ST-S CR4 GMW11M EG60G60GE ,GMW2M-ST-S CR5 GMW11M EG60G60GE GMW2M-ST-S CR1 EG50G50GE ,GMW2M-ST-S CR2 EG50G50GE ,GMW2M-ST-S CR3 EG50G50GE ,GMW2M-ST-S CR4 EG50G50GE GMW2M-ST-S CR5 EG50G50GE ,GMW2M-ST-S CR1 EG60G60GE ,GMW2M-ST-S CR2 EG60G60GE ,GMW2M-ST-S CR3 EG60G60GE ,GMW2M-ST-S CR4 EG60G60GE ,GMW2M-ST-S CR5 EG60G60GE FE系列汽车钢 FEP03ZNT/F.FEP04ZNT/F.FEP05ZNT/F.FEP06ZNT/F.FEE180IF.ZNT/F.FEE210IF ZNT/F.FEE220BH ZNT/F FEE270F ZNT/F.FEE315F ZNT/F.FEE340F ZNT/F.FEE355F ZNT/F.FEE420F ZNT/F.FE600DP F ZNT/F.FE800DP F ZNT/F.FE700TR F ZNT/F.FE1000DP F ZNT/F.FE1200DP F ZNT/F 日系汽车钢 JSC270C JSC270D JSC270E JSC270F JSC270DG JSC270H JSC340W JSC340H JSC340P JSC370W JSC370P JSC390W JSC390P JSC440W JSC440P JSC590R JSC590Y JSC780Y JSC980Y JSC1180Y JSH270C JSH270D JSH270E JSH310W JSH370W JSH400W JSH440W JSH440R JSH440B SAPH440BH JSH490W JSH490R JSH490B JSH540W JSH540R JSH540Y JSH540B JSH590W JSH590R JSH590Y JSH780W JSH780R JSH780 YZStE340 ZSTE380 ZSTE420 ZSTE460 JAC270C,SPCC SPCC,SPCD,SPCE,SPCEN,SPFC340,SPFC340H,SPFC370,SPFC390,SPFC440,SPFC490,SPFC540,SPFC590,SPFC590Y,SPFC780,SPFC980,SS330,SS400,SPHC, SPHD,SPHE,SAPH310,SAPH370,SAPH440,SPFH490,SPFH540,SPFH540Y,SPFH590,SPFH590Y, SECC20/20,SECC20/20,SECD20/20,SECEN20/20,SEHC,SEHD,SEHE。SEFC 370~980Y。SEPH310~440 SEFH490~540。(ASP5),SGC440 F04,SA1C,SP129,SP121,SP122,SP123,SP124,SP131-340,SP132-340,SP135-340,SP131-370,SP132-370,SP150-390,SP152-440,SP150-490,SP150-540,SP151-590,SP153-590Z,SP153-780,SP150-980,SP211,SP212,RP221 SP221,RP222 SP222, RP223 SP223,SP230-310,RP231-370,SP231-370,SP230-400,RP231-440,SP231-440F,SP250-490,RP251-540,SP251-540,RP252-540,SP252-540F RP253-590,SP253-590,RP254-590,SP254-590,SP629,SP621, SP622,SP623,SP606,SP607,SP608,SP600-370~980,SP605-310~540,SP709,SP70,SP702?,SP706,SP789,SP781,SP782,RP791 SP791,SP781-340,SP782-340.SP785-340,SP781-390,SP782-390,SP783,SP784,RP791-440,SP791-440 JAC270D JAC270E JAC270F JAC340W JAC340P JAC340H JAC390W JAC390P
卷板-卷板品牌_钢昌实业(呼伦贝尔市分公司),联系人:王胜然,金石路1658弄11号3楼。