将电(dian)机、减(jian)速(su)机构置于(yu)筒内部的(de)电(dian)动(dong)滚(gun)(gun)筒和(he)将减(jian)速(su)机构置于(yu)筒体内外(wai)联(lian)电(dian)机而构成的(de)外(wai)装(zhuang)式(shi)电(dian)动(dong)滚(gun)(gun)筒，主要应(ying)用(yong)(yong)(yong)在固定式(shi)和(he)移动(dong)式(shi)带式(shi)输(shu)(shu)送机上(shang)，代(dai)替传(chuan)统的(de)电(dian)机－减(jian)速(su)器－传(chuan)动(dong)滚(gun)(gun)筒形成的(de)外(wai)驱动(dong)装(zhuang)置。随着国民(min)经济的(de)飞速(su)发展和(he)电(dian)动(dong)滚(gun)(gun)筒技术水平(ping)的(de)不断(duan)提(ti)(ti)高(gao)，电(dian)动(dong)滚(gun)(gun)筒作为驱动(dong)单元应(ying)用(yong)(yong)(yong)在斗式(shi)提(ti)(ti)升(sheng)机上(shang)，作为主动(dong)辊子应(ying)用(yong)(yong)(yong)在带式(shi)输(shu)(shu)送机上(shang)，输(shu)(shu)送各(ge)种散状(zhuang)、件(jian)状(zhuang)物品。要求紧急停车，可选用(yong)(yong)(yong)有(you)制动(dong)器的(de)电(dian)动(dong)滚(gun)(gun)筒。要求单项旋转，防止(zhi)上(shang)运物料停电(dian)下滑时，可选用(yong)(yong)(yong)带逆止(zhi)器的(de)电(dian)动(dong)滚(gun)(gun)筒。具(ju)有(you)可燃性气体的(de)场(chang)(chang)所(suo)，可选用(yong)(yong)(yong)隔爆型电(dian)动(dong)滚(gun)(gun)筒。总之(zhi)，由于(yu)电(dian)动(dong)滚(gun)(gun)筒具(ju)有(you)结构紧凑，效率高(gao)、耗能(neng)少、噪声低、寿命长、运行(xing)平(ping)稳、可靠、密封性好，占用(yong)(yong)(yong)场(chang)(chang)地少、安装(zhuang)维护(hu)方便等(deng)优点，应(ying)用(yong)(yong)(yong)于(yu)冶金、化工、建材、煤炭、交(jiao)通、能(neng)源、粮(liang)食、商业、邮电(dian)、港口(kou)等(deng)各(ge)个(ge)领域。在饮料行(xing)业中，法思特(te)电(dian)动(dong)辊筒用(yong)(yong)(yong)于(yu)瓶装(zhuang)和(he)罐装(zhuang)饮料的(de)输(shu)(shu)送，以(yi)其卫生和(he)高(gao)效的(de)特(te)性，满足大规模生产的(de)需求。浙江驱动(dong)电(dian)动(dong)辊筒市场(chang)(chang)价格

某大型电(dian)商企(qi)(qi)业(ye)在(zai)(zai)(zai)全(quan)国范(fan)围内(nei)拥有大量的(de)(de)(de)物流(liu)配(pei)(pei)送(song)(song)(song)中(zhong)心(xin)。在(zai)(zai)(zai)其(qi)中(zhong)一个(ge)配(pei)(pei)送(song)(song)(song)中(zhong)心(xin)，他们(men)(men)遇到了(le)(le)(le)一个(ge)问(wen)(wen)题：由(you)于订单量巨大，配(pei)(pei)送(song)(song)(song)流(liu)程经常出现堵塞，尤其(qi)是在(zai)(zai)(zai)货(huo)物分(fen)拣和(he)(he)(he)搬运(yun)过程中(zhong)。这导致了(le)(le)(le)配(pei)(pei)送(song)(song)(song)效(xiao)(xiao)率(lv)(lv)低(di)下，客户投诉增加(jia)。为了(le)(le)(le)解决这个(ge)问(wen)(wen)题，该企(qi)(qi)业(ye)决定(ding)(ding)引入法(fa)思特(te)电(dian)动(dong)辊(gun)筒(tong)。通过使(shi)用这种(zhong)辊(gun)筒(tong)，他们(men)(men)可(ke)(ke)以(yi)更(geng)高(gao)效(xiao)(xiao)地(di)(di)分(fen)拣和(he)(he)(he)搬运(yun)货(huo)物，从(cong)(cong)而(er)减(jian)少(shao)了(le)(le)(le)堵塞和(he)(he)(he)提(ti)(ti)高(gao)了(le)(le)(le)配(pei)(pei)送(song)(song)(song)效(xiao)(xiao)率(lv)(lv)。在(zai)(zai)(zai)运(yun)用了(le)(le)(le)电(dian)动(dong)辊(gun)筒(tong)后(hou)，该配(pei)(pei)送(song)(song)(song)中(zhong)心(xin)的(de)(de)(de)运(yun)营(ying)得(de)到了(le)(le)(le)很好的(de)(de)(de)改善。具体表现在(zai)(zai)(zai)以(yi)下几(ji)个(ge)方面：提(ti)(ti)高(gao)了(le)(le)(le)分(fen)拣效(xiao)(xiao)率(lv)(lv)：使(shi)用电(dian)动(dong)辊(gun)筒(tong)，员工(gong)可(ke)(ke)以(yi)更(geng)轻松(song)地(di)(di)移(yi)动(dong)和(he)(he)(he)定(ding)(ding)位货(huo)物，从(cong)(cong)而(er)加(jia)快了(le)(le)(le)分(fen)拣速度(du)。减(jian)少(shao)了(le)(le)(le)人(ren)力成(cheng)本(ben)：电(dian)动(dong)辊(gun)筒(tong)系统(tong)可(ke)(ke)以(yi)自动(dong)化地(di)(di)完成(cheng)一些繁琐的(de)(de)(de)任务，从(cong)(cong)而(er)减(jian)少(shao)了(le)(le)(le)员工(gong)的(de)(de)(de)工(gong)作强度(du)和(he)(he)(he)人(ren)力成(cheng)本(ben)。提(ti)(ti)高(gao)了(le)(le)(le)货(huo)物安(an)全(quan)性：电(dian)动(dong)辊(gun)筒(tong)系统(tong)的(de)(de)(de)精确控(kong)制和(he)(he)(he)稳定(ding)(ding)性使(shi)得(de)货(huo)物在(zai)(zai)(zai)搬运(yun)过程中(zhong)更(geng)加(jia)安(an)全(quan)，减(jian)少(shao)了(le)(le)(le)破(po)损(sun)和(he)(he)(he)丢(diu)失的(de)(de)(de)风(feng)险(xian)。降(jiang)(jiang)低(di)了(le)(le)(le)能源消耗：电(dian)动(dong)辊(gun)筒(tong)系统(tong)使(shi)用电(dian)力而(er)非人(ren)力，从(cong)(cong)而(er)降(jiang)(jiang)低(di)了(le)(le)(le)能源消耗，符合绿色物流(liu)的(de)(de)(de)理(li)念。通过引入法(fa)思特(te)电(dian)动(dong)辊(gun)筒(tong)，该电(dian)商企(qi)(qi)业(ye)成(cheng)功(gong)地(di)(di)解决了(le)(le)(le)物流(liu)配(pei)(pei)送(song)(song)(song)中(zhong)的(de)(de)(de)问(wen)(wen)题，提(ti)(ti)高(gao)了(le)(le)(le)效(xiao)(xiao)率(lv)(lv)和(he)(he)(he)客户满意(yi)度(du)。安(an)徽油冷(leng)电(dian)动(dong)辊(gun)筒(tong)结构说明在(zai)(zai)(zai)电(dian)子行业(ye)中(zhong)，法(fa)思特(te)电(dian)动(dong)辊(gun)筒(tong)保证了(le)(le)(le)精密部件的(de)(de)(de)高(gao)效(xiao)(xiao)传输和(he)(he)(he)组装。

不锈钢(gang)：不锈钢(gang)是(shi)一(yi)种电(dian)(dian)动(dong)滚筒(tong)(tong)(tong)筒(tong)(tong)(tong)体(ti)材(cai)(cai)料，具(ju)(ju)(ju)有较(jiao)好的(de)(de)(de)(de)耐(nai)(nai)(nai)腐(fu)(fu)蚀(shi)性(xing)(xing)(xing)(xing)和(he)耐(nai)(nai)(nai)磨(mo)(mo)性(xing)(xing)(xing)(xing)。通常采用(yong)304、316等不锈钢(gang)制作(zuo)(zuo)。不锈钢(gang)制成的(de)(de)(de)(de)筒(tong)(tong)(tong)体(ti)适用(yong)于腐(fu)(fu)蚀(shi)性(xing)(xing)(xing)(xing)环境、食品行业等特殊场合，价格较(jiao)高(gao)(gao)。在选(xuan)(xuan)择筒(tong)(tong)(tong)体(ti)材(cai)(cai)料时(shi)，需(xu)要考(kao)虑(lv)材(cai)(cai)料的(de)(de)(de)(de)强(qiang)度、耐(nai)(nai)(nai)磨(mo)(mo)性(xing)(xing)(xing)(xing)、耐(nai)(nai)(nai)腐(fu)(fu)蚀(shi)性(xing)(xing)(xing)(xing)、价格等因素，以(yi)确(que)保(bao)(bao)(bao)(bao)选(xuan)(xuan)择的(de)(de)(de)(de)筒(tong)(tong)(tong)体(ti)材(cai)(cai)料能够满(man)(man)足实际(ji)需(xu)求并保(bao)(bao)(bao)(bao)证输(shu)(shu)(shu)送线的(de)(de)(de)(de)稳定性(xing)(xing)(xing)(xing)和(he)安全性(xing)(xing)(xing)(xing)。碳钢(gang)镀(du)锌(xin)：具(ju)(ju)(ju)有耐(nai)(nai)(nai)压(ya)性(xing)(xing)(xing)(xing)，能够承受较(jiao)大的(de)(de)(de)(de)压(ya)力(li)和(he)摩擦力(li)。碳钢(gang)镀(du)锌(xin)材(cai)(cai)质(zhi)(zhi)的(de)(de)(de)(de)筒(tong)(tong)(tong)体(ti)具(ju)(ju)(ju)有较(jiao)好的(de)(de)(de)(de)耐(nai)(nai)(nai)磨(mo)(mo)性(xing)(xing)(xing)(xing)，可(ke)(ke)以(yi)在高(gao)(gao)负载(zai)和(he)长时(shi)间使用(yong)下保(bao)(bao)(bao)(bao)持稳定的(de)(de)(de)(de)性(xing)(xing)(xing)(xing)能。相对(dui)于其他材(cai)(cai)质(zhi)(zhi)，碳钢(gang)镀(du)锌(xin)材(cai)(cai)质(zhi)(zhi)较(jiao)轻，可(ke)(ke)以(yi)降低电(dian)(dian)动(dong)滚筒(tong)(tong)(tong)的(de)(de)(de)(de)整(zheng)体(ti)重量(liang)，便于搬运和(he)使用(yong)。包胶：包胶后的(de)(de)(de)(de)筒(tong)(tong)(tong)体(ti)表面具(ju)(ju)(ju)有更(geng)好的(de)(de)(de)(de)摩擦性(xing)(xing)(xing)(xing)能，可(ke)(ke)以(yi)更(geng)好地(di)与输(shu)(shu)(shu)送带(dai)贴合，提高(gao)(gao)输(shu)(shu)(shu)送带(dai)的(de)(de)(de)(de)牵引力(li)和(he)传(chuan)动(dong)效率(lv)。包胶层可(ke)(ke)以(yi)起到缓冲(chong)减震的(de)(de)(de)(de)作(zuo)(zuo)用(yong)，减少输(shu)(shu)(shu)送带(dai)与筒(tong)(tong)(tong)体(ti)之间的(de)(de)(de)(de)冲(chong)击和(he)振动(dong)，提高(gao)(gao)设(she)备的(de)(de)(de)(de)平(ping)稳性(xing)(xing)(xing)(xing)和(he)使用(yong)寿命。在选(xuan)(xuan)择筒(tong)(tong)(tong)体(ti)材(cai)(cai)料时(shi)，需(xu)要考(kao)虑(lv)材(cai)(cai)料的(de)(de)(de)(de)强(qiang)度、耐(nai)(nai)(nai)磨(mo)(mo)性(xing)(xing)(xing)(xing)、耐(nai)(nai)(nai)腐(fu)(fu)蚀(shi)性(xing)(xing)(xing)(xing)、价格等因素，以(yi)确(que)保(bao)(bao)(bao)(bao)选(xuan)(xuan)择的(de)(de)(de)(de)筒(tong)(tong)(tong)体(ti)材(cai)(cai)料能够满(man)(man)足实际(ji)需(xu)求并保(bao)(bao)(bao)(bao)证输(shu)(shu)(shu)送线的(de)(de)(de)(de)稳定性(xing)(xing)(xing)(xing)和(he)安全性(xing)(xing)(xing)(xing)。

电(dian)(dian)(dian)(dian)动(dong)(dong)辊(gun)(gun)筒(tong)(tong)的(de)(de)构(gou)造：电(dian)(dian)(dian)(dian)机(ji)(ji)(ji)：电(dian)(dian)(dian)(dian)动(dong)(dong)辊(gun)(gun)筒(tong)(tong)使(shi)(shi)用的(de)(de)电(dian)(dian)(dian)(dian)机(ji)(ji)(ji)一般为伺服电(dian)(dian)(dian)(dian)机(ji)(ji)(ji)或步进电(dian)(dian)(dian)(dian)机(ji)(ji)(ji)，具有(you)精度高(gao)、响应(ying)快(kuai)、稳定(ding)性好的(de)(de)特点。减(jian)(jian)速(su)机(ji)(ji)(ji)：减(jian)(jian)速(su)机(ji)(ji)(ji)是(shi)(shi)电(dian)(dian)(dian)(dian)动(dong)(dong)辊(gun)(gun)筒(tong)(tong)的(de)(de)重要(yao)部件，它能够将(jiang)电(dian)(dian)(dian)(dian)机(ji)(ji)(ji)的(de)(de)转速(su)降低，从而(er)输出(chu)更大(da)的(de)(de)扭(niu)矩。常用的(de)(de)减(jian)(jian)速(su)机(ji)(ji)(ji)有(you)蜗(wo)轮(lun)(lun)蜗(wo)杆(gan)减(jian)(jian)速(su)机(ji)(ji)(ji)、谐波减(jian)(jian)速(su)机(ji)(ji)(ji)等。齿(chi)轮(lun)(lun)：齿(chi)轮(lun)(lun)是(shi)(shi)减(jian)(jian)速(su)机(ji)(ji)(ji)中的(de)(de)重要(yao)部件，它的(de)(de)精度和强度直接影(ying)响到整个电(dian)(dian)(dian)(dian)动(dong)(dong)辊(gun)(gun)筒(tong)(tong)的(de)(de)性能。辊(gun)(gun)筒(tong)(tong)：辊(gun)(gun)筒(tong)(tong)是(shi)(shi)电(dian)(dian)(dian)(dian)动(dong)(dong)辊(gun)(gun)筒(tong)(tong)的(de)(de)执行部分，它一般由筒(tong)(tong)体、轴(zhou)和轴(zhou)承(cheng)等部件组成。根据(ju)使(shi)(shi)用要(yao)求，辊(gun)(gun)筒(tong)(tong)的(de)(de)材质和长度等参(can)数也有(you)所不同。电(dian)(dian)(dian)(dian)动(dong)(dong)辊(gun)(gun)筒(tong)(tong)主要(yao)由电(dian)(dian)(dian)(dian)机(ji)(ji)(ji)、减(jian)(jian)速(su)器和辊(gun)(gun)筒(tong)(tong)组成，具有(you)结构(gou)紧凑、操作简便的(de)(de)特点。

今(jin)年以来(lai)，中(zhong)国汽(qi)(qi)(qi)(qi)(qi)车(che)(che)(che)(che)行业(ye)(ye)(ye)工业(ye)(ye)(ye)增(zeng)加(jia)值保持较(jiao)快(kuai)增(zeng)长(zhang)，这意味着中(zhong)国汽(qi)(qi)(qi)(qi)(qi)车(che)(che)(che)(che)行业(ye)(ye)(ye)生产持续(xu)(xu)稳定(ding)(ding)恢(hui)复。中(zhong)国汽(qi)(qi)(qi)(qi)(qi)车(che)(che)(che)(che)制(zhi)(zhi)造(zao)(zao)(zao)业(ye)(ye)(ye)固定(ding)(ding)资(zi)(zi)产投资(zi)(zi)同比(bi)增(zeng)长(zhang)19.2%，高于全(quan)国固定(ding)(ding)资(zi)(zi)产投资(zi)(zi)15.8个百分点。这说明中(zhong)国汽(qi)(qi)(qi)(qi)(qi)车(che)(che)(che)(che)制(zhi)(zhi)造(zao)(zao)(zao)业(ye)(ye)(ye)在未(wei)来(lai)有(you)较(jiao)大(da)的(de)(de)发展空间(jian)，并且企(qi)业(ye)(ye)(ye)对于未(wei)来(lai)的(de)(de)发展充满信心。同时(shi)，上半(ban)年我(wo)国新(xin)能(neng)(neng)源汽(qi)(qi)(qi)(qi)(qi)车(che)(che)(che)(che)产销量(liang)实(shi)现(xian)同比(bi)稳健增(zeng)长(zhang)，新(xin)能(neng)(neng)源汽(qi)(qi)(qi)(qi)(qi)车(che)(che)(che)(che)的(de)(de)渗(shen)透率持续(xu)(xu)提(ti)升(sheng)。产业(ye)(ye)(ye)结(jie)构加(jia)速升(sheng)级(ji)，车(che)(che)(che)(che)企(qi)加(jia)快(kuai)推进(jin)内销与“出海(hai)”的(de)(de)步伐，电动(dong)(dong)(dong)化消费潜(qian)力(li)逐步释(shi)放。我(wo)国新(xin)能(neng)(neng)源汽(qi)(qi)(qi)(qi)(qi)车(che)(che)(che)(che)产业(ye)(ye)(ye)正在迈向(xiang)规模化、全(quan)球化的(de)(de)高质量(liang)发展新(xin)阶段。在这一背景下(xia)，汽(qi)(qi)(qi)(qi)(qi)车(che)(che)(che)(che)装配，零(ling)部(bu)件(jian)制(zhi)(zhi)造(zao)(zao)(zao)也在引(yin)入(ru)新(xin)技术(shu)、新(xin)工艺(yi)。产能(neng)(neng)提(ti)升(sheng)，设备(bei)(bei)更新(xin)换代，设备(bei)(bei)商(shang)(shang)迎(ying)接新(xin)的(de)(de)机(ji)(ji)遇与挑战。法思特(te)驱(qu)(qu)动(dong)(dong)(dong)科技作为(wei)物流输(shu)(shu)送行业(ye)(ye)(ye)零(ling)部(bu)件(jian)制(zhi)(zhi)造(zao)(zao)(zao)商(shang)(shang)与供应商(shang)(shang)，冲在前线(xian)，为(wei)智能(neng)(neng)制(zhi)(zhi)造(zao)(zao)(zao)，智慧物流夯(hang)实(shi)基础(chu)。汽(qi)(qi)(qi)(qi)(qi)车(che)(che)(che)(che)零(ling)部(bu)件(jian)（底盘，车(che)(che)(che)(che)架(jia)，车(che)(che)(che)(che)壳）具(ju)有(you)重量(liang)大(da)，体积大(da)的(de)(de)特(te)点，对于辊筒(tong)(tong)部(bu)件(jian)的(de)(de)性能(neng)(neng)带来(lai)了(le)不小的(de)(de)挑战。同时(shi)，汽(qi)(qi)(qi)(qi)(qi)车(che)(che)(che)(che)厂(chang)商(shang)(shang)对于输(shu)(shu)送设备(bei)(bei)的(de)(de)要求也越来(lai)越高，更加(jia)节省空间(jian)，更加(jia)节能(neng)(neng)降耗，更加(jia)智能(neng)(neng)高效，法思特(te)驱(qu)(qu)动(dong)(dong)(dong)科技全(quan)新(xin)推出φ50直(zhi)流24V电动(dong)(dong)(dong)辊筒(tong)(tong)，助力(li)汽(qi)(qi)(qi)(qi)(qi)车(che)(che)(che)(che)装配及(ji)零(ling)部(bu)件(jian)加(jia)工制(zhi)(zhi)造(zao)(zao)(zao)。电动(dong)(dong)(dong)辊筒(tong)(tong)的(de)(de)电机(ji)(ji)采用先(xian)进(jin)的(de)(de)控制(zhi)(zhi)技术(shu)，可(ke)实(shi)现(xian)精(jing)确的(de)(de)速度和位置(zhi)控制(zhi)(zhi)。绍兴驱(qu)(qu)动(dong)(dong)(dong)电动(dong)(dong)(dong)辊筒(tong)(tong)

电动(dong)辊(gun)(gun)筒(tong)在(zai)运行过程中噪音低，振动(dong)小，能(neng)够满足各(ge)种(zhong)环境下的工作要(yao)求。浙江驱动(dong)电动(dong)辊(gun)(gun)筒(tong)市场(chang)价格

无(wu)(wu)(wu)动(dong)(dong)力(li)(li)(li)滚(gun)(gun)(gun)筒(tong)在工业领域应用很多，它是(shi)一种没有动(dong)(dong)力(li)(li)(li)源(yuan)的(de)(de)(de)输送(song)(song)装置(zhi)，主要(yao)由筒(tong)体、轴(zhou)芯、轴(zhou)承(cheng)座和(he)(he)支架(jia)等(deng)部分组成(cheng)。这些部件的(de)(de)(de)长(zhang)度(du)可(ke)以(yi)(yi)根(gen)据(ju)实际(ji)需(xu)(xu)求进(jin)行(xing)定(ding)制。当(dang)需(xu)(xu)要(yao)定(ding)制无(wu)(wu)(wu)动(dong)(dong)力(li)(li)(li)滚(gun)(gun)(gun)筒(tong)的(de)(de)(de)长(zhang)度(du)时，需(xu)(xu)要(yao)根(gen)据(ju)输送(song)(song)线(xian)(xian)的(de)(de)(de)长(zhang)度(du)、物(wu)料(liao)(liao)的(de)(de)(de)大小和(he)(he)重(zhong)量(liang)、操作环境等(deng)因素进(jin)行(xing)综(zong)合考(kao)虑。例如(ru)，如(ru)果需(xu)(xu)要(yao)在输送(song)(song)线(xian)(xian)上(shang)实现长(zhang)距离(li)的(de)(de)(de)物(wu)料(liao)(liao)输送(song)(song)，就(jiu)需(xu)(xu)要(yao)选择(ze)(ze)较(jiao)长(zhang)的(de)(de)(de)无(wu)(wu)(wu)动(dong)(dong)力(li)(li)(li)滚(gun)(gun)(gun)筒(tong)，以(yi)(yi)保证(zheng)物(wu)料(liao)(liao)的(de)(de)(de)稳(wen)定(ding)性(xing)和(he)(he)输送(song)(song)效(xiao)率(lv)；反之，如(ru)果输送(song)(song)距离(li)较(jiao)短，可(ke)以(yi)(yi)选择(ze)(ze)较(jiao)短的(de)(de)(de)滚(gun)(gun)(gun)筒(tong)。定(ding)制无(wu)(wu)(wu)动(dong)(dong)力(li)(li)(li)滚(gun)(gun)(gun)筒(tong)时还需(xu)(xu)考(kao)虑其稳(wen)定(ding)性(xing)和(he)(he)承(cheng)载能(neng)力(li)(li)(li)。如(ru)果无(wu)(wu)(wu)动(dong)(dong)力(li)(li)(li)滚(gun)(gun)(gun)筒(tong)的(de)(de)(de)长(zhang)度(du)过(guo)长(zhang)，可(ke)能(neng)会导致其刚性(xing)和(he)(he)稳(wen)定(ding)性(xing)降低，从而影响物(wu)料(liao)(liao)的(de)(de)(de)输送(song)(song)效(xiao)率(lv)和(he)(he)质量(liang)。因此(ci)，在定(ding)制无(wu)(wu)(wu)动(dong)(dong)力(li)(li)(li)滚(gun)(gun)(gun)筒(tong)时，需(xu)(xu)要(yao)根(gen)据(ju)实际(ji)情况进(jin)行(xing)评估(gu)和(he)(he)计(ji)算，以(yi)(yi)确保选择(ze)(ze)的(de)(de)(de)长(zhang)度(du)能(neng)够(gou)满足实际(ji)需(xu)(xu)求，并(bing)保证(zheng)物(wu)料(liao)(liao)输送(song)(song)的(de)(de)(de)稳(wen)定(ding)性(xing)和(he)(he)安(an)全性(xing)。浙江驱动(dong)(dong)电动(dong)(dong)辊筒(tong)市(shi)场(chang)价格

本(ben)文来自海润达物联科技有(you)限责(ze)任公司：//qfd1mz.cn/Article/05f18699808.html