無負壓(ya)供(gong)(gong)水設(she)(she)(she)備(bei)(bei)(bei)是一(yi)種(zhong)先(xian)進的(de)(de)(de)技術，其原理(li)是通過在(zai)供(gong)(gong)水管道(dao)中設(she)(she)(she)置一(yi)定(ding)(ding)的(de)(de)(de)負壓(ya)保護裝置，當管道(dao)內(nei)部(bu)出現(xian)負壓(ya)時，設(she)(she)(she)備(bei)(bei)(bei)會(hui)自動啟動，將外部(bu)空氣(qi)壓(ya)力引(yin)入管道(dao)內(nei)部(bu)，從而(er)(er)避免(mian)了(le)管道(dao)內(nei)部(bu)的(de)(de)(de)負壓(ya)狀(zhuang)態。這(zhe)(zhe)種(zhong)技術的(de)(de)(de)優勢(shi)主要(yao)體現(xian)在(zai)無負壓(ya)供(gong)(gong)水設(she)(she)(she)備(bei)(bei)(bei)可(ke)以(yi)有(you)效(xiao)地避免(mian)管道(dao)內(nei)部(bu)的(de)(de)(de)負壓(ya)狀(zhuang)態，從而(er)(er)保證(zheng)了(le)供(gong)(gong)水系統(tong)的(de)(de)(de)正(zheng)常(chang)運行(xing)。在(zai)傳統(tong)的(de)(de)(de)供(gong)(gong)水系統(tong)中，由于管道(dao)內(nei)部(bu)存在(zai)一(yi)定(ding)(ding)的(de)(de)(de)負壓(ya)，容易導致管道(dao)內(nei)部(bu)的(de)(de)(de)空氣(qi)被吸入，從而(er)(er)污染(ran)水質，影(ying)響供(gong)(gong)水質量。而(er)(er)無負壓(ya)供(gong)(gong)水設(she)(she)(she)備(bei)(bei)(bei)可(ke)以(yi)有(you)效(xiao)地避免(mian)這(zhe)(zhe)種(zhong)情況的(de)(de)(de)發生，從而(er)(er)保證(zheng)了(le)供(gong)(gong)水系統(tong)的(de)(de)(de)水質安全。疊壓(ya)供(gong)(gong)水設(she)(she)(she)備(bei)(bei)(bei)的(de)(de)(de)設(she)(she)(she)計考(kao)慮了(le)管道(dao)水力特(te)性，能有(you)效(xiao)降低水流阻力，減少(shao)能源(yuan)損耗。江蘇(su)工業供(gong)(gong)水設(she)(she)(she)備(bei)(bei)(bei)廠商(shang)

隨著科(ke)技(ji)(ji)的(de)(de)(de)不(bu)斷(duan)進步和人們對供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)質量的(de)(de)(de)要求不(bu)斷(duan)提(ti)高，無(wu)(wu)(wu)負(fu)(fu)(fu)(fu)壓(ya)(ya)(ya)(ya)(ya)(ya)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)設(she)(she)備(bei)的(de)(de)(de)未來發展趨勢也越(yue)來越(yue)明顯。首先，無(wu)(wu)(wu)負(fu)(fu)(fu)(fu)壓(ya)(ya)(ya)(ya)(ya)(ya)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)設(she)(she)備(bei)將(jiang)(jiang)更加(jia)(jia)智能(neng)(neng)(neng)化。未來的(de)(de)(de)無(wu)(wu)(wu)負(fu)(fu)(fu)(fu)壓(ya)(ya)(ya)(ya)(ya)(ya)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)設(she)(she)備(bei)將(jiang)(jiang)會采用更加(jia)(jia)先進的(de)(de)(de)自主控(kong)制系統，實現更加(jia)(jia)準確的(de)(de)(de)水(shui)(shui)壓(ya)(ya)(ya)(ya)(ya)(ya)調(diao)節(jie)(jie)和水(shui)(shui)質凈化處理。其次，無(wu)(wu)(wu)負(fu)(fu)(fu)(fu)壓(ya)(ya)(ya)(ya)(ya)(ya)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)設(she)(she)備(bei)將(jiang)(jiang)更加(jia)(jia)節(jie)(jie)能(neng)(neng)(neng)環(huan)保。未來的(de)(de)(de)無(wu)(wu)(wu)負(fu)(fu)(fu)(fu)壓(ya)(ya)(ya)(ya)(ya)(ya)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)設(she)(she)備(bei)將(jiang)(jiang)會采用更加(jia)(jia)節(jie)(jie)能(neng)(neng)(neng)環(huan)保的(de)(de)(de)技(ji)(ji)術，如太(tai)陽能(neng)(neng)(neng)、風能(neng)(neng)(neng)等，實現更加(jia)(jia)環(huan)保的(de)(de)(de)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)服務。無(wu)(wu)(wu)負(fu)(fu)(fu)(fu)壓(ya)(ya)(ya)(ya)(ya)(ya)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)設(she)(she)備(bei)將(jiang)(jiang)更加(jia)(jia)普及(ji)。隨著無(wu)(wu)(wu)負(fu)(fu)(fu)(fu)壓(ya)(ya)(ya)(ya)(ya)(ya)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)設(she)(she)備(bei)技(ji)(ji)術的(de)(de)(de)不(bu)斷(duan)提(ti)升和成本的(de)(de)(de)不(bu)斷(duan)降低，無(wu)(wu)(wu)負(fu)(fu)(fu)(fu)壓(ya)(ya)(ya)(ya)(ya)(ya)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)設(she)(she)備(bei)將(jiang)(jiang)會逐漸普及(ji)到更多的(de)(de)(de)城市和地區(qu)，為更多的(de)(de)(de)人們提(ti)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)穩(wen)定、安全、環(huan)保的(de)(de)(de)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)服務。無(wu)(wu)(wu)壓(ya)(ya)(ya)(ya)(ya)(ya)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)設(she)(she)備(bei)行價運用無(wu)(wu)(wu)負(fu)(fu)(fu)(fu)壓(ya)(ya)(ya)(ya)(ya)(ya)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)設(she)(she)備(bei)，可以減少(shao)供(gong)(gong)(gong)(gong)(gong)(gong)(gong)水(shui)(shui)管網的(de)(de)(de)維(wei)護成本和頻繁檢修的(de)(de)(de)需求。

供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)：單位時間內輸出一定(ding)流量(liang)、揚程(cheng)的(de)(de)自(zi)(zi)動(dong)(dong)(dong)啟(qi)停(ting)的(de)(de)給(gei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)裝置。按用(yong)(yong)途(tu)(tu)分：消(xiao)防(fang)(fang)、生(sheng)(sheng)活(huo)、生(sheng)(sheng)產(chan)(chan)、污水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)處(chu)理四(si)類。供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)定(ding)義：1.消(xiao)防(fang)(fang)供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)：用(yong)(yong)于(yu)(yu)消(xiao)防(fang)(fang)用(yong)(yong)途(tu)(tu)的(de)(de)供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)。2.生(sheng)(sheng)活(huo)供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)：用(yong)(yong)于(yu)(yu)生(sheng)(sheng)活(huo)用(yong)(yong)途(tu)(tu)的(de)(de)供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)。3.生(sheng)(sheng)產(chan)(chan)供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)：用(yong)(yong)于(yu)(yu)生(sheng)(sheng)產(chan)(chan)用(yong)(yong)途(tu)(tu)的(de)(de)供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)。4.污水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)處(chu)理供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)：用(yong)(yong)于(yu)(yu)污水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)處(chu)理用(yong)(yong)途(tu)(tu)的(de)(de)供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)。5.其他：設(she)(she)(she)備(bei)(bei)(bei)用(yong)(yong)于(yu)(yu)雙模(mo)工礦企業生(sheng)(sheng)產(chan)(chan)用(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)。隨著(zhu)二次供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)加壓技(ji)術的(de)(de)發展，供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)從根本上(shang)解決(jue)了水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)塔(ta)供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)問題。據(ju)“供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)推(tui)廣中(zhong)心(xin)”的(de)(de)資料(liao)顯示，供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)不需(xu)建(jian)造(zao)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)塔(ta)，投(tou)(tou)資小、占地少(shao)，采用(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)氣自(zi)(zi)動(dong)(dong)(dong)調節、自(zi)(zi)動(dong)(dong)(dong)運轉(zhuan)、節能與自(zi)(zi)來(lai)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)自(zi)(zi)動(dong)(dong)(dong)并網，停(ting)電后(hou)仍可(ke)供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)，調試后(hou)數年不需(xu)看管。比建(jian)造(zao)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)塔(ta)節約投(tou)(tou)資70%，比建(jian)造(zao)高位水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)箱節約投(tou)(tou)資60%，很大程(cheng)度上(shang)節約土(tu)建(jian)投(tou)(tou)資。供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)(she)備(bei)(bei)(bei)普遍用(yong)(yong)于(yu)(yu)企事業單位、住宅區及農村的(de)(de)生(sheng)(sheng)產(chan)(chan)、生(sheng)(sheng)活(huo)、辦公用(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)。供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)戶在(zai)20－2000戶。日供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)量(liang)在(zai)20－50000m3，供(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)高度達150米，即(ji)50層(ceng)樓房。

無(wu)負(fu)壓壓供水(shui)設備(bei)(bei)產品特(te)點：1、智能化程度高，操(cao)作簡單(dan)，節(jie)省人(ren)力：該(gai)設備(bei)(bei)由全(quan)(quan)自(zi)動(dong)智能化控制(zhi)(zhi)器控制(zhi)(zhi)，自(zi)行(xing)(xing)根(gen)據用(yong)(yong)戶(hu)(hu)(hu)的(de)用(yong)(yong)水(shui)量(liang)和管網的(de)自(zi)來水(shui)壓力進(jin)行(xing)(xing)調節(jie)，實行(xing)(xing)無(wu)人(ren)值守。并(bing)且(qie)采(cai)用(yong)(yong)人(ren)機(ji)界面(mian)（文(wen)本、數字）顯示，使客戶(hu)(hu)(hu)更加直觀的(de)看(kan)到設備(bei)(bei)的(de)運行(xing)(xing)狀況。2、環保衛生(sheng):設備(bei)(bei)全(quan)(quan)封閉運行(xing)(xing)，徹底消(xiao)除(chu)水(shui)源二次(ci)污(wu)染。3、保護(hu)功能齊全(quan)(quan)：具有(you)完shan的(de)過載、短路、過壓、欠壓、缺(que)相(xiang)、過流(liu)、水(shui)源缺(que)水(shui)等(deng)自(zi)動(dong)保護(hu)功能。在異常(chang)情(qing)況下(xia)能進(jin)行(xing)(xing)信號報警、自(zi)檢、故障判斷等(deng)。4、占地(di)少(shao)安裝方便(bian)：整套設備(bei)(bei)只有(you)一(yi)組供水(shui)控制(zhi)(zhi)柜、無(wu)負(fu)壓穩流(liu)罐(guan)和水(shui)泵(beng)機(ji)組三部分，安裝非常(chang)簡單(dan)方便(bian)。5、延長設備(bei)(bei)的(de)使用(yong)(yong)壽命：對多臺泵(beng)組均能可(ke)靠的(de)實現軟啟(qi)動(dong)，使電(dian)(dian)網和管網免沖擊(ji)，延長了水(shui)泵(beng)及電(dian)(dian)機(ji)的(de)使用(yong)(yong)壽命。利(li)用(yong)(yong)自(zi)動(dong)供水(shui)設備(bei)(bei)，可(ke)以(yi)實時監(jian)測供水(shui)網絡的(de)水(shui)質情(qing)況，保障用(yong)(yong)戶(hu)(hu)(hu)用(yong)(yong)水(shui)的(de)安全(quan)(quan)和衛生(sheng)。

無負壓(ya)(ya)供(gong)水(shui)(shui)(shui)(shui)(shui)設(she)(she)備是(shi)一種(zhong)(zhong)新型的(de)(de)(de)(de)(de)供(gong)水(shui)(shui)(shui)(shui)(shui)設(she)(she)備，它采用了先進的(de)(de)(de)(de)(de)技術，能(neng)(neng)夠在(zai)供(gong)水(shui)(shui)(shui)(shui)(shui)管網(wang)中形(xing)成(cheng)一定的(de)(de)(de)(de)(de)負壓(ya)(ya)，從而(er)實現(xian)穩(wen)定的(de)(de)(de)(de)(de)水(shui)(shui)(shui)(shui)(shui)壓(ya)(ya)。這種(zhong)(zhong)設(she)(she)備的(de)(de)(de)(de)(de)優勢在(zai)于，它能(neng)(neng)夠保(bao)證用戶在(zai)高(gao)峰(feng)時段(duan)仍能(neng)(neng)夠享(xiang)受到(dao)充足的(de)(de)(de)(de)(de)供(gong)水(shui)(shui)(shui)(shui)(shui)，而(er)且還能(neng)(neng)夠提高(gao)供(gong)水(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)效率和(he)質量。具體來說，無負壓(ya)(ya)供(gong)水(shui)(shui)(shui)(shui)(shui)設(she)(she)備可以通過自動(dong)調節水(shui)(shui)(shui)(shui)(shui)泵(beng)的(de)(de)(de)(de)(de)運行狀態，使得供(gong)水(shui)(shui)(shui)(shui)(shui)管網(wang)中的(de)(de)(de)(de)(de)水(shui)(shui)(shui)(shui)(shui)壓(ya)(ya)始(shi)終保(bao)持在(zai)一個穩(wen)定的(de)(de)(de)(de)(de)范圍內(nei)，從而(er)避免了供(gong)水(shui)(shui)(shui)(shui)(shui)壓(ya)(ya)力不足或過高(gao)的(de)(de)(de)(de)(de)情況。此外(wai)，無負壓(ya)(ya)供(gong)水(shui)(shui)(shui)(shui)(shui)設(she)(she)備還可以通過自動(dong)監測(ce)供(gong)水(shui)(shui)(shui)(shui)(shui)管網(wang)的(de)(de)(de)(de)(de)運行狀態，及時發現(xian)并解決(jue)管網(wang)中的(de)(de)(de)(de)(de)故(gu)障，從而(er)保(bao)證了供(gong)水(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)連續性(xing)和(he)可靠(kao)性(xing)。無負壓(ya)(ya)供(gong)水(shui)(shui)(shui)(shui)(shui)設(she)(she)備在(zai)高(gao)層建筑和(he)市區供(gong)水(shui)(shui)(shui)(shui)(shui)系統中具有重要的(de)(de)(de)(de)(de)應(ying)用價(jia)值。湖南自動(dong)供(gong)水(shui)(shui)(shui)(shui)(shui)設(she)(she)備價(jia)位

疊壓(ya)供(gong)(gong)水設備的應用(yong)為區(qu)域(yu)供(gong)(gong)水系統提(ti)供(gong)(gong)了可靠的解決方案，提(ti)升了水資源(yuan)利用(yong)效率(lv)和(he)經濟(ji)效益。江蘇工業(ye)供(gong)(gong)水設備廠商

無負(fu)(fu)壓(ya)(ya)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)備(bei)的應用范圍非常普遍(bian)，可(ke)(ke)以用于城市供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)、工(gong)業(ye)(ye)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)、農(nong)村(cun)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)等(deng)各個領(ling)域。在(zai)城市供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)方(fang)面，無負(fu)(fu)壓(ya)(ya)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)備(bei)可(ke)(ke)以有效地解決(jue)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)壓(ya)(ya)力不(bu)足、供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)不(bu)穩定(ding)等(deng)問題(ti)，提高(gao)了城市供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)的質(zhi)量和(he)(he)(he)效率。在(zai)工(gong)業(ye)(ye)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)方(fang)面，無負(fu)(fu)壓(ya)(ya)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)備(bei)可(ke)(ke)以滿(man)足工(gong)業(ye)(ye)生(sheng)產(chan)(chan)對水(shui)(shui)(shui)(shui)(shui)(shui)質(zhi)和(he)(he)(he)水(shui)(shui)(shui)(shui)(shui)(shui)壓(ya)(ya)的要求，保(bao)證(zheng)了工(gong)業(ye)(ye)生(sheng)產(chan)(chan)的連(lian)續性和(he)(he)(he)穩定(ding)性。在(zai)農(nong)村(cun)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)方(fang)面，無負(fu)(fu)壓(ya)(ya)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)備(bei)可(ke)(ke)以解決(jue)農(nong)村(cun)地區(qu)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)不(bu)足、供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)不(bu)穩定(ding)等(deng)問題(ti)，提高(gao)了農(nong)村(cun)居民的生(sheng)活質(zhi)量。實際效果表(biao)明，無負(fu)(fu)壓(ya)(ya)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)備(bei)可(ke)(ke)以有效地提高(gao)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)的質(zhi)量和(he)(he)(he)效率，保(bao)證(zheng)了供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)的連(lian)續性和(he)(he)(he)可(ke)(ke)靠(kao)性，受到(dao)了普遍(bian)的應用和(he)(he)(he)好評。江蘇工(gong)業(ye)(ye)供(gong)(gong)(gong)(gong)(gong)水(shui)(shui)(shui)(shui)(shui)(shui)設(she)(she)備(bei)廠商

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