以下是:卷板安装的产品参数
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 在淮安市金湖县采买卷板安装到钢昌实业有限公司,无论您是个人用户还是企业采购,我们都将竭诚为您服务。品质保证,价格优惠,厂家直销,欢迎有需要的客户来电。联系人:王胜然-18762195566,QQ:18762195566,地址:《金石路1658弄11号3楼发货到江苏省 淮安市 金湖县、清河区、淮阴区、清浦区、涟水县、洪泽区、盱眙县》。 江苏省,淮安市,金湖县 金湖县,隶属江苏省淮安市。位于江苏省中部,因境内白马湖、宝应湖、高邮湖三湖环绕,由敬爱的周恩来总理定名:“金湖”,象征资源丰富,日出斗金。金湖县辖3个街道、5个镇,面积1393.86平方千米。根据全国第七次人口普查数据显示,截至2020年11月1日零时,金湖县常住人口为289456人,占淮安市的6.35%。
不要错过这部精心制作的卷板安装产品视频!仅仅一分钟的时间,您将能够领略到我们产品的卓越品质和出色设计,发现更多令人心动的细节。
以下是:卷板安装的图文介绍
热轧钢卷板产品广泛用于建筑、高架桥模具、桥梁一般构件、城市管廊建设。具有较好的力学性能和焊接性能。 碳素结构用热轧钢带 具有足够的延展性,适合于简单的成型,弯曲或焊接工艺。 冷成型用热轧钢带 冷成型用钢按照其用途可以分为一般用、冲压用、深冲用和超深冲用。我厂生产的冷成型用钢采用低碳及超低碳加合金成分设计,具有良好的冲压性能、焊接性能和较高的尺寸精度。主要应用于家电、五金行业。 桥梁结构用热轧钢带 桥梁结构用钢具有良好的机械性能,韧性和良好的抗疲劳性能,表面质量精良,主要用于架造铁路和公路桥梁。 汽车大梁钢 汽车大梁钢具有良好的强度和成型能力,用于制造汽车大梁、横梁,具有良好的折弯加工性能,开平、纵剪平直度良好,韧性和疲劳性能优良。 汽车车轮钢 汽车车轮钢具有良好的冷成型性能,用于制造汽车滚型车轮轮辋及轮辐,具有良好的焊接性能、耐疲劳性能及低温冲击性能。 汽车结构钢 冷成型用钢带尺寸精度高,表面质量和板形优良,具有强度高,韧性好,易于加工成型及良好的可焊接性等。类型包括有高屈服强度钢,铁素体贝氏体钢双相钢和铁素体马氏体双相钢。 工程机械用钢 工程机械用钢具有强度高,耐疲劳性与冷成型性好,塑性和韧性优异等特点,主要应用于掘机、装载机、推土机、各类起重机及煤矿液压支架等机械设备。 耐磨钢 耐磨钢板具有一定冷弯性能,硬度高,焊接性能良好等特点,主要应用于汽车底板和混凝土搅拌罐等零部件。 耐大气腐蚀结构钢 耐大气腐蚀结构钢热轧板带具有强度高、易焊接、易折弯等特点,广泛用于集装箱、车辆、建筑、塔架等结构件。 船舶结构用热轧钢带 船舶用热轧钢带具有板形良好,尺寸精度高,焊接性能好,冲击性能高的特点。产品控制体系完备,同时也通过了中国船级社认证,被各大造船厂广泛使用。 锅炉压力容器用钢 锅炉压力容器用钢具有良好的力学性能、可焊接性和加工性能,广泛应用于石油、化工、电站、锅炉等行业。 焊接气瓶用钢 焊接气瓶用钢具有较高的强度,良好的塑性、韧性和加工成型性能,以保证产品在高压状态下使用、可靠。主要用于液化石油气瓶、乙炔气瓶和焊瓶等加工件。 CSP结构热轧结构钢板 热轧产品广泛用于建筑、高架桥模具、桥梁一般构件、城市管廊建设。具有较好的力学性能,满足结构件加工的典型要求,焊接性能优良,尤其是利用螺旋卷管设备,可加工焊接为各类口径和壁厚的供水、供热、供气、供油管道。 CSP结构热轧船体结构用钢 采用连铸连轧生产工艺,采用了目前钢铁行业比较先进的炼钢和精炼技术与之配套。采用国际多项先进成熟的冶金、连铸、轧钢新技术和设备,配备了完备的三级计算机系统,为均衡生产和产品输出提供了有效的过程控制和管理。 CSP热轧花纹用钢 采用连铸连轧生产工艺,采用了目前钢铁行业比较先进的炼钢和精炼技术与之配套。采用国际多项先进成熟的冶金、连铸、轧钢新技术和设备,花纹板主要为扁豆形花纹板,应用于交通人行通道、建筑过道楼梯、装饰装潢、设备周围底板,具有外形美观易清洗、防滑性强、强化性能、节约钢材等优点。
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
淮安金湖钢昌实业有限公司处于素有“ 镀锌卷板,酸洗卷板厂家之都”美称的淮安金湖,优越的地理位置和便利的交通给公司的发展带来了充分的条件.技术骨干精良,实力雄厚,公司勇于创新,一直致力于 镀锌卷板,酸洗卷板厂家生产技术的革新,跑在生产技术的前沿。
热轧酸洗卷板在淮安金湖汽车行业主要用途如下: ??1、汽车底盘系统,包括大梁、副梁等。车轮,包括轮辋、轮辐射等。驾驶室内板。车厢板,主要是各种卡车的车厢底板。其它冲压件,包括防撞保险杠、刹车间闸套等一些汽车内部小零件。 ??2、机械行业(不含汽车)主要包括纺织机械、矿山机械、风机以及一些通用机械。 ??3、轻工家电,主要用于制造压缩机的壳体、支架,热水器内胆等。化工油桶。 ??4、其他自行车零件、各种焊管、电气柜、高速公路护栏、超市货架、仓库货架、栅栏、铁梯以及各种形状的冲压件。
您是想要在淮安市金湖县采购高质量的卷板安装产品吗?钢昌实业有限公司是您的不二之选!我们致力于提供品质保证、价格优惠的卷板安装产品,品种齐全,不断创新,致力于满足广大客户的多种需求,联系人:王胜然-18762195566,QQ:18762195566,地址:《金石路1658弄11号3楼》。