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陜西301不銹鋼換熱管量大從優

發布時間:2024-05-08 13:37:32   來源:廣西藝景園林工程有限責任公司   閱覽次(ci)數:26677次(ci)   

我(wo)們在選擇換熱(re)(re)(re)(re)管(guan)廠家的(de)時(shi)(shi)候(hou)要綜合考慮各種因(yin)(yin)素,現(xian)在市場中(zhong)不(bu)(bu)(bu)銹鋼(gang)(gang)管(guan)換熱(re)(re)(re)(re)管(guan)比較多,這就(jiu)使得不(bu)(bu)(bu)銹鋼(gang)(gang)換熱(re)(re)(re)(re)管(guan)行業(ye)得到了(le)長(chang)足的(de)發(fa)展。不(bu)(bu)(bu)銹鋼(gang)(gang)換熱(re)(re)(re)(re)管(guan)具有(you)(you)(you)如(ru)下(xia)特(te)點:(1)小型高效:由(you)于傳熱(re)(re)(re)(re)過程是在,故具有(you)(you)(you)很高的(de)傳熱(re)(re)(re)(re)效率(lv),竄聯之后(hou)的(de)傳熱(re)(re)(re)(re)效率(lv)達90%以上(shang);(2)灰塵(chen)很難阻(zu)塞:排(pai)(pai)氣以層流(liu)(liu)方(fang)式流(liu)(liu)過平板上(shang)下(xia),同時(shi)(shi),由(you)于與氣體流(liu)(liu)入(ru)面(mian)成60°角,不(bu)(bu)(bu)會引起(qi)紊流(liu)(liu),灰塵(chen)也(ye)不(bu)(bu)(bu)會阻(zu)塞;(3)容易清(qing)洗(xi)(xi):雖然灰塵(chen)不(bu)(bu)(bu)宜阻(zu)塞,但,若用(yong)于灰塵(chen)量特(te)別多的(de)地方(fang)(100mg/m3以上(shang))時(shi)(shi),應通過自動洗(xi)(xi)凈(jing)(jing)裝置(zhi)的(de)時(shi)(shi)間(jian)設定,運行中(zhong)可在適當(dang)的(de)間(jian)隔內的(de)任(ren)意時(shi)(shi)間(jian)進行洗(xi)(xi)凈(jing)(jing)。一般采用(yong)60°c的(de)熱(re)(re)(re)(re)水(shui),有(you)(you)(you)時(shi)(shi)還必須用(yong)堿水(shui)進行洗(xi)(xi)凈(jing)(jing);(4)壽(shou)命(ming)長(chang):結(jie)構非常(chang)簡單,沒有(you)(you)(you)驅動部分和老化因(yin)(yin)素;(5)沒有(you)(you)(you)污(wu)染(ran):用(yong)于全焊接疆(jiang)兩種介質分開(kai),故排(pai)(pai)氣不(bu)(bu)(bu)能(neng)進入(ru)給氣中(zhong);(6)消聲(sheng)效果:由(you)于薄板能(neng)吸收風壓(ya),噪聲(sheng)低于40Db,故能(neng)防止(zhi)噪聲(sheng)。無錫鈧鉑鋼(gang)(gang)鐵有(you)(you)(you)限公司為您提供不(bu)(bu)(bu)銹鋼(gang)(gang)換熱(re)(re)(re)(re)管(guan),歡迎您的(de)來電哦(e)!陜西(xi)301不(bu)(bu)(bu)銹鋼(gang)(gang)換熱(re)(re)(re)(re)管(guan)量大從優(you)

陜西301不銹鋼換熱管量大從優,不銹鋼換熱管

造(zao)成(cheng)(cheng)(cheng)表(biao)(biao)面(mian)(mian)膜多種損壞(huai)形(xing)式,在日(ri)常(chang)生活(huo)中(zhong)(zhong)常(chang)見的(de)(de),1.含有(you)其他(ta)金屬元素或異質金屬顆粒(li)附(fu)(fu)件的(de)(de)灰塵沉(chen)積在不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)表(biao)(biao)面(mian)(mian)。在潮濕的(de)(de)空(kong)(kong)氣中(zhong)(zhong),附(fu)(fu)件和(he)(he)不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)之間的(de)(de)冷凝水(shui)(shui)(shui)將兩(liang)者連(lian)接成(cheng)(cheng)(cheng)一個微(wei)型電(dian)池(chi),引發電(dian)化學(xue)反應并且破(po)壞(huai)保(bao)護膜,這被稱為電(dian)化學(xue)腐(fu)(fu)蝕(shi)。2.不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)表(biao)(biao)面(mian)(mian)附(fu)(fu)著有(you)機(ji)物(wu)汁液(如瓜菜、面(mian)(mian)湯(tang)、痰等(deng))。),它在水(shui)(shui)(shui)和(he)(he)氧的(de)(de)存在下形(xing)成(cheng)(cheng)(cheng)有(you)機(ji)酸(suan)(suan),并且會長時間腐(fu)(fu)蝕(shi)金屬表(biao)(biao)面(mian)(mian)。3.不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)表(biao)(biao)面(mian)(mian)粘有(you)酸(suan)(suan)、堿(jian)和(he)(he)鹽類物(wu)質(如濺(jian)在裝飾墻上(shang)的(de)(de)堿(jian)水(shui)(shui)(shui)和(he)(he)石灰水(shui)(shui)(shui)),導致(zhi)機(ji)器局部(bu)腐(fu)(fu)蝕(shi)。4.在受污(wu)染的(de)(de)空(kong)(kong)氣中(zhong)(zhong)(如含有(you)大(da)量硫化物(wu)、碳氧化物(wu)和(he)(he)氧化炎(yan)癥的(de)(de)空(kong)(kong)氣),冷凝水(shui)(shui)(shui)會形(xing)成(cheng)(cheng)(cheng)硫酸(suan)(suan)、硝酸(suan)(suan)和(he)(he)醋(cu)酸(suan)(suan)液斑(ban),造(zao)成(cheng)(cheng)(cheng)化學(xue)腐(fu)(fu)蝕(shi)。上(shang)述所有(you)情況都可能導致(zhi)不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)表(biao)(biao)面(mian)(mian)保(bao)護膜的(de)(de)破(po)壞(huai),從而導致(zhi)腐(fu)(fu)蝕(shi)。西藏31603不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)換(huan)熱(re)管(guan)(guan)現貨無錫鈧鉑鋼(gang)鐵有(you)限公司(si)是一家專(zhuan)業提供不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)換(huan)熱(re)管(guan)(guan)的(de)(de)公司(si),歡迎新老客戶來電(dian)!

陜西301不銹鋼換熱管量大從優,不銹鋼換熱管

不(bu)(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)管(guan)(guan)的(de)(de)(de)老化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)意味(wei)著不(bu)(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)管(guan)(guan)的(de)(de)(de)材(cai)料隨時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)而(er)變(bian)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)。不(bu)(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)的(de)(de)(de)硬(ying)(ying)(ying)(ying)(ying)(ying)度(du)隨著時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)而(er)增(zeng)加,這(zhe)就(jiu)是(shi)(shi)(shi)時(shi)(shi)(shi)(shi)(shi)效(xiao)(xiao)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)。老化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)現象(xiang)不(bu)(bu)(bu)(bu)僅意味(wei)著硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)。硬(ying)(ying)(ying)(ying)(ying)(ying)度(du)和(he)(he)強度(du)是(shi)(shi)(shi)不(bu)(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)突出的(de)(de)(de)特征,所以我們(men)稱(cheng)之(zhi)為(wei)(wei)時(shi)(shi)(shi)(shi)(shi)效(xiao)(xiao)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)。由于(yu)(yu)時(shi)(shi)(shi)(shi)(shi)效(xiao)(xiao)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua),硬(ying)(ying)(ying)(ying)(ying)(ying)質鋁(lv)合(he)(he)金(jin)(jin)的(de)(de)(de)發明只(zhi)能(neng)使(shi)用(yong)。硬(ying)(ying)(ying)(ying)(ying)(ying)質鋁(lv)合(he)(he)金(jin)(jin)在(zai)(zai)本文(wen)中(zhong)被稱(cheng)為(wei)(wei)鋁(lv)合(he)(he)金(jin)(jin)2000系列,并且本發明是(shi)(shi)(shi)優異的(de)(de)(de)。不(bu)(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)管(guan)(guan)的(de)(de)(de)時(shi)(shi)(shi)(shi)(shi)效(xiao)(xiao)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)可以理解(jie)(jie)如下(xia)。不(bu)(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)管(guan)(guan)熱處(chu)理過程(cheng)中(zhong)應沉(chen)(chen)淀(dian)(dian)的(de)(de)(de)合(he)(he)金(jin)(jin)元(yuan)素(su)不(bu)(bu)(bu)(bu)會因快速(su)(su)(su)冷卻而(er)沉(chen)(chen)淀(dian)(dian),而(er)是(shi)(shi)(shi)會被強制溶(rong)解(jie)(jie)在(zai)(zai)鋼(gang)管(guan)(guan)中(zhong),這(zhe)是(shi)(shi)(shi)固(gu)溶(rong)處(chu)理。經過固(gu)溶(rong)處(chu)理的(de)(de)(de)不(bu)(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)管(guan)(guan)處(chu)于(yu)(yu)不(bu)(bu)(bu)(bu)穩定狀(zhuang)態(tai),管(guan)(guan)內的(de)(de)(de)合(he)(he)金(jin)(jin)元(yuan)素(su)有(you)機(ji)會沉(chen)(chen)淀(dian)(dian),試(shi)圖恢復穩定狀(zhuang)態(tai)。隨著時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)的(de)(de)(de)推(tui)移,合(he)(he)金(jin)(jin)元(yuan)素(su)逐漸沉(chen)(chen)積,使(shi)得合(he)(he)金(jin)(jin)網格之(zhi)間(jian)(jian)的(de)(de)(de)相(xiang)(xiang)對滑動(dong)越(yue)來(lai)(lai)越(yue)困難,即合(he)(he)金(jin)(jin)的(de)(de)(de)硬(ying)(ying)(ying)(ying)(ying)(ying)度(du)越(yue)來(lai)(lai)越(yue)高(gao)(gao)。根據上述過程(cheng),時(shi)(shi)(shi)(shi)(shi)效(xiao)(xiao)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)可以稱(cheng)為(wei)(wei)沉(chen)(chen)淀(dian)(dian)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)。在(zai)(zai)室溫下(xia)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)的(de)(de)(de)時(shi)(shi)(shi)(shi)(shi)效(xiao)(xiao)是(shi)(shi)(shi)室溫硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)。人工時(shi)(shi)(shi)(shi)(shi)效(xiao)(xiao)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)是(shi)(shi)(shi)一種通(tong)過人工提高(gao)(gao)溫度(du)和(he)(he)加速(su)(su)(su)溶(rong)解(jie)(jie)在(zai)(zai)合(he)(he)金(jin)(jin)中(zhong)的(de)(de)(de)元(yuan)素(su)的(de)(de)(de)原子運動(dong)來(lai)(lai)加速(su)(su)(su)時(shi)(shi)(shi)(shi)(shi)效(xiao)(xiao)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)的(de)(de)(de)方法。這(zhe)種人工時(shi)(shi)(shi)(shi)(shi)效(xiao)(xiao)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)也稱(cheng)為(wei)(wei)沉(chen)(chen)淀(dian)(dian)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)。鋁(lv)合(he)(he)金(jin)(jin)和(he)(he)鑄件在(zai)(zai)JIS有(you)相(xiang)(xiang)關標(biao)準。T4表(biao)示淬火(huo)后在(zai)(zai)室溫硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua),T5和(he)(he)T6表(biao)示回火(huo)是(shi)(shi)(shi)沉(chen)(chen)淀(dian)(dian)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)。600系列不(bu)(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)被稱(cheng)為(wei)(wei)沉(chen)(chen)淀(dian)(dian)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua),是(shi)(shi)(shi)一種沉(chen)(chen)淀(dian)(dian)硬(ying)(ying)(ying)(ying)(ying)(ying)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)鋼(gang)。作(zuo)為(wei)(wei)一個類似于(yu)(yu)老化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)的(de)(de)(de)術語,它隨著時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)而(er)變(bian)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua),隨著時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)而(er)變(bian)化(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)(hua)。

隨著(zhu)不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)換熱管(guan)的技術越(yue)來(lai)(lai)越(yue)成(cheng)熟,用(yong)(yong)量也越(yue)來(lai)(lai)越(yue)大(da),應(ying)用(yong)(yong)于各(ge)大(da)領域(yu)。不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)換熱管(guan)漏水問題(ti):一:板材選(xuan)(xuan)擇(ze),選(xuan)(xuan)擇(ze)優良(liang)鋼(gang)(gang)帶,比較好是(shi)切邊的,二(er):制(zhi)管(guan)過程(cheng)中壓制(zhi)到(dao)位,水質(zhi)沌凈(jing),焊口致密,三(san):在(zai)(zai)線(xian)固(gu)溶,溫(wen)度調節(jie),只有(you)在(zai)(zai)每一個環(huan)節(jie)把控好,才能制(zhi)出優良(liang)管(guan)子,銀澤(ze)金屬有(you)限(xian)公(gong)司專業制(zhi)管(guan)二(er)十(shi)年(nian),擁有(you)先(xian)進制(zhi)管(guan)機在(zai)(zai)線(xian)固(gu)溶機和在(zai)(zai)線(xian)內(nei)整(zheng)平,先(xian)后給各(ge)大(da)廠輸(shu)送各(ge)種(zhong)類型管(guan)材,為客戶解決了漏水,起皺,裂口,砂眼,黑(hei)線(xian),歡(huan)迎(ying)來(lai)(lai)電來(lai)(lai)人咨詢。不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)換熱管(guan),就選(xuan)(xuan)無錫(xi)鈧鉑(bo)鋼(gang)(gang)鐵有(you)限(xian)公(gong)司,用(yong)(yong)戶的信賴之(zhi)選(xuan)(xuan),有(you)想法的不(bu)(bu)(bu)要錯過哦(e)!

陜西301不銹鋼換熱管量大從優,不銹鋼換熱管

換(huan)(huan)(huan)熱(re)管(guan)(guan)常(chang)(chang)用(yong)材(cai)(cai)質(zhi)(zhi)(zhi)是碳鋼(gang),介質(zhi)(zhi)(zhi)有(you)(you)較(jiao)弱腐(fu)蝕性考(kao)慮使用(yong)雙相鋼(gang);與海水換(huan)(huan)(huan)熱(re)采用(yong)鈦管(guan)(guan)。奧(ao)氏體不(bu)(bu)銹鋼(gang)?鐵素(su)體不(bu)(bu)銹鋼(gang)?,介質(zhi)(zhi)(zhi)有(you)(you)較(jiao)弱腐(fu)蝕性考(kao)慮使用(yong)雙相鋼(gang)成(cheng)本會很高,換(huan)(huan)(huan)熱(re)管(guan)(guan)常(chang)(chang)用(yong)材(cai)(cai)質(zhi)(zhi)(zhi)是碳鋼(gang)容易(yi)腐(fu)蝕。不(bu)(bu)銹鋼(gang)換(huan)(huan)(huan)熱(re)器(qi)是應(ying)用(yong)材(cai)(cai)質(zhi)(zhi)(zhi)為不(bu)(bu)銹鋼(gang)材(cai)(cai)料的(de)換(huan)(huan)(huan)熱(re)器(qi),具(ju)有(you)(you)非常(chang)(chang)好(hao)(hao)的(de)抗(kang)氧化(hua)特性,安全衛(wei)生,廣泛(fan)應(ying)用(yong)食品、醫藥(yao)、采暖、生活用(yong)水、空調回水等領域。據換(huan)(huan)(huan)熱(re)設(she)備推(tui)廣中心的(de)資料顯(xian)示,不(bu)(bu)銹鋼(gang)換(huan)(huan)(huan)熱(re)器(qi)比傳統(tong)碳鋼(gang)換(huan)(huan)(huan)熱(re)器(qi)的(de)換(huan)(huan)(huan)熱(re)效(xiao)果(guo)(guo)具(ju)有(you)(you)更加良好(hao)(hao)的(de)傳熱(re)效(xiao)果(guo)(guo),且壽命使用(yong)較(jiao)長(chang)。無錫鈧鉑鋼(gang)鐵有(you)(you)限公司致力于提供(gong)不(bu)(bu)銹鋼(gang)換(huan)(huan)(huan)熱(re)管(guan)(guan),歡(huan)迎新老(lao)客戶(hu)來電!河南31603不(bu)(bu)銹鋼(gang)換(huan)(huan)(huan)熱(re)管(guan)(guan)成(cheng)本

無錫(xi)鈧鉑鋼(gang)鐵有(you)限公司致力于提供不銹(xiu)鋼(gang)換熱管(guan)(guan),有(you)想法的可以來(lai)電咨詢!陜西301不銹(xiu)鋼(gang)換熱管(guan)(guan)量大從優

不(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)產品在我(wo)們生(sheng)活中的(de)(de)(de)應(ying)(ying)(ying)(ying)用(yong)(yong)(yong)是非常多的(de)(de)(de),很多場(chang)所(suo)都有應(ying)(ying)(ying)(ying)用(yong)(yong)(yong),換(huan)(huan)(huan)熱管(guan)是換(huan)(huan)(huan)熱器(qi)的(de)(de)(de)元件之(zhi)(zhi)(zhi)一,置(zhi)于(yu)筒體(ti)之(zhi)(zhi)(zhi)內,用(yong)(yong)(yong)于(yu)兩介質之(zhi)(zhi)(zhi)間熱量的(de)(de)(de)交(jiao)換(huan)(huan)(huan)。除光管(guan)外,換(huan)(huan)(huan)熱器(qi)還(huan)可采(cai)用(yong)(yong)(yong)各種各樣的(de)(de)(de)強化傳(chuan)熱管(guan),如翅(chi)片管(guan)、螺紋管(guan)、螺旋槽管(guan)等(deng)(deng)。當(dang)管(guan)內直徑兩側給(gei)熱系數相差較大(da)時,翅(chi)片管(guan)的(de)(de)(de)翅(chi)片應(ying)(ying)(ying)(ying)布置(zhi)在給(gei)熱系數低的(de)(de)(de)一側。不(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)熱交(jiao)換(huan)(huan)(huan)器(qi)具有上述(shu)優點,廣(guang)泛應(ying)(ying)(ying)(ying)用(yong)(yong)(yong)于(yu)工業馀熱回收,成(cheng)為節約(yue)能源消耗的(de)(de)(de)重要手段之(zhi)(zhi)(zhi)一。回收的(de)(de)(de)馀熱可用(yong)(yong)(yong)于(yu)空調和加熱工業過(guo)程的(de)(de)(de)供氣。美國Q-Dot公司資(zi)料(liao)顯(xian)示,不(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)熱交(jiao)換(huan)(huan)(huan)器(qi)已應(ying)(ying)(ying)(ying)用(yong)(yong)(yong)于(yu)空氣干燥器(qi)、油漆干燥爐(lu)、漂白爐(lu)、磚(zhuan)窯、谷物(wu)干燥器(qi)、鏈式干燥爐(lu)等(deng)(deng)。另外,在焊接(jie)和電鍍(du)技(ji)(ji)(ji)(ji)術(shu)(shu)、制模技(ji)(ji)(ji)(ji)術(shu)(shu)、涂裝(zhuang)技(ji)(ji)(ji)(ji)術(shu)(shu)、制藥、化肥生(sheng)產、污染控制、冷(leng)凍技(ji)(ji)(ji)(ji)術(shu)(shu)、噴霧(wu)干燥技(ji)(ji)(ji)(ji)術(shu)(shu)、制革技(ji)(ji)(ji)(ji)術(shu)(shu)、紡織原料(liao)熱處(chu)理、廢蒸(zheng)汽回收等(deng)(deng)方(fang)面(mian)也(ye)得到(dao)了實際(ji)應(ying)(ying)(ying)(ying)用(yong)(yong)(yong)不(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)。陜西(xi)301不(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)換(huan)(huan)(huan)熱管(guan)量大(da)從優

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