產品名稱:單作用氣動不銹鋼球閥(fa)Q641F
更新日期:2023-11-25
訪問次數:1537
產品特點:單(dan)作用(yong)氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)不(bu)(bu)銹(xiu)鋼(gang)球(qiu)(qiu)閥(fa)(fa)(fa)Q641F故障自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)復位(wei)氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)不(bu)(bu)銹(xiu)鋼(gang)球(qiu)(qiu)閥(fa)(fa)(fa)/防(fang)爆(bao)氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)不(bu)(bu)銹(xiu)鋼(gang)切(qie)斷(duan)球(qiu)(qiu)閥(fa)(fa)(fa)Q641F氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)不(bu)(bu)銹(xiu)鋼(gang)球(qiu)(qiu)閥(fa)(fa)(fa)/單(dan)作用(yong)氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)帶手(shou)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)不(bu)(bu)銹(xiu)鋼(gang)球(qiu)(qiu)閥(fa)(fa)(fa)Q6S41F氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)帶手(shou)輪(lun)不(bu)(bu)銹(xiu)鋼(gang)球(qiu)(qiu)閥(fa)(fa)(fa)Q641F-16P單(dan)作用(yong)故障自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)復位(wei)防(fang)爆(bao)氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)不(bu)(bu)銹(xiu)鋼(gang)球(qiu)(qiu)閥(fa)(fa)(fa)/氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)開關型(xing)不(bu)(bu)銹(xiu)鋼(gang)球(qiu)(qiu)閥(fa)(fa)(fa)/氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)調(diao)節型(xing)不(bu)(bu)銹(xiu)鋼(gang)球(qiu)(qiu)閥(fa)(fa)(fa)/氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)帶手(shou)操機構不(bu)(bu)銹(xiu)鋼(gang)球(qiu)(qiu)閥(fa)(fa)(fa)/單(dan)作用(yong)CT4防(fang)爆(bao)氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)開關型(xing)球(qiu)(qiu)閥(fa)(fa)(fa)CT6防(fang)爆(bao)氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)切(qie)斷(duan)型(xing)球(qiu)(qiu)閥(fa)(fa)(fa)是由(you)不(bu)(bu)銹(xiu)鋼(gang)球(qiu)(qiu)閥(fa)(fa)(fa)與(yu)氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)執行(xing)機構及(ji)其它相(xiang)關附件組成。
Q641F單作用氣動球閥
產品簡介:
單作用氣動不銹鋼球閥Q641F故障自動復位氣動不銹鋼球閥/防爆氣動不銹鋼切斷球閥Q641F氣動不銹鋼球閥/單作用氣動帶手動不銹鋼球閥Q6S41F氣動帶手輪不銹鋼球閥/氣動球閥Q641F-10P氣動法蘭球閥Q641F-16P單作用故障自動復位防爆氣動不銹鋼球閥/氣動開關型不銹鋼球閥/氣動調節型不銹鋼球閥/氣動帶手操機構不銹鋼球閥/單作用CT4防爆氣動開關型球閥CT6防爆氣動切斷型球閥是(shi)由不(bu)銹鋼(gang)球(qiu)(qiu)閥(fa)與氣(qi)動(dong)(dong)執行機構及(ji)其它相關(guan)附件組成,利用(yong)氣(qi)源驅動(dong)(dong)來(lai)控(kong)制閥(fa)門(men)(men)啟(qi)閉,閥(fa)體材質(zhi)均由不(bu)銹鋼(gang)制作,具有良好的抗拉性(xing),耐磨性(xing)以及(ji)防腐蝕性(xing)等,不(bu)僅可(ke)(ke)(ke)用(yong)于一般常(chang)(chang)溫常(chang)(chang)壓(ya)的場合當中,還適用(yong)于高溫高壓(ya)和低壓(ya)力(li)降(jiang)等工(gong)作條件相對(dui)比較(jiao)惡(e)劣的管道里。可(ke)(ke)(ke)根(gen)據工(gong)況需要裝(zhuang)配上(shang)閥(fa)門(men)(men)定位器,輸(shu)入4-20mA的模擬量信號,達到(dao)對(dui)球(qiu)(qiu)閥(fa)開(kai)度大(da)小的百分(fen)比調節控(kong)制。也可(ke)(ke)(ke)增加蝸輪手(shou)動(dong)(dong)裝(zhuang)置防止閥(fa)門(men)(men)氣(qi)缸無氣(qi)源狀態手(shou)動(dong)(dong)可(ke)(ke)(ke)操作閥(fa)門(men)(men)的開(kai)關(guan),使其氣(qi)動(dong)(dong)閥(fa)門(men)(men)更安(an)全可(ke)(ke)(ke)靠。
性能優點:
1、不銹鋼球閥(fa)采用(yong)精密鑄造,與氣動執行器(qi)連接組成,不僅可以作為開關截斷作用(yong)、也(ye)可作為流量(liang)調(diao)節作用(yong)。
2、多(duo)樣(yang)化選(xuan)擇,通(tong)過選(xuan)用(yong)不同的閥體(ti)、閥座材質(zhi),可適用(yong)于不同工況(kuang)介質(zhi)當中(zhong)。
3、適用(yong)范圍(wei)廣(guang)闊,可用(yong)于常(chang)溫(wen)常(chang)壓場(chang)合(he),也可在高(gao)溫(wen)高(gao)壓及低溫(wen)工況中(zhong)使用(yong)。
4、采用氣(qi)體(ti)為動力(li)源,壓(ya)力(li)一般在0.4-0.7MPa左右,相(xiang)對(dui)來說比較(jiao)安全。如果漏氣(qi)的話,氣(qi)體(ti)可以直接排出(chu),對(dui)環境沒有(you)污染,具有(you)較(jiao)高的安全性。
5、采(cai)用(yong)(yong)(yong)新型(xing)AT/GT系列(lie)氣動(dong)執行器(qi)(qi),有雙作(zuo)用(yong)(yong)(yong)和單作(zuo)用(yong)(yong)(yong)式(shi)(彈簧復位),采(cai)用(yong)(yong)(yong)齒(chi)輪齒(chi)條式(shi)結(jie)構傳(chuan)動(dong),性能更(geng)安全可靠;大(da)(da)口徑(jing)閥門采(cai)用(yong)(yong)(yong)AW系列(lie)氣動(dong)執行器(qi)(qi),撥叉式(shi)結(jie)構傳(chuan)動(dong),結(jie)構合理,輸(shu)出扭矩大(da)(da)。
工作原理:
Q6S41F氣(qi)動帶手輪(lun)球閥是(shi)由GT型、AT型氣(qi)動活塞(sai)式氣(qi)缸和呈(cheng)(cheng)90°旋(xuan)轉的球閥及蝸輪(lun)手動裝置(zhi)直接組合而成。當(dang)(dang)球旋(xuan)轉90度(du)時,在進、出口處應全部呈(cheng)(cheng)現球面(mian),從而截斷流(liu)動,反之既呈(cheng)(cheng)現通(tong)孔,使介質通(tong)過(guo)。氣(qi)動執行器能快速(su)旋(xuan)轉90度(du)就能使球閥瞬間(jian)關閉(bi)嚴密,當(dang)(dang)氣(qi)動執行器發(fa)(fa)生故障時,也(ye)可用(yong)手動蝸輪(lun)裝置(zhi)進行閥門(men)的關閉(bi)和開啟,減少了(le)發(fa)(fa)生故障的機率(lv)。
產品特點:
1、可(ke)選配蝸輪手動(dong)裝置,增(zeng)加氣動(dong)閥門的安全性。
2、安(an)(an)裝(zhuang)簡便,能以(yi)任(ren)意方向(xiang)安(an)(an)裝(zhuang)于管道中的(de)任(ren)意部位。
3、閥體內(nei)通道平整光滑,可以(yi)輸送粘性(xing)流體、漿液(ye)以(yi)及固體顆(ke)粒(li)。
4、由(you)于聚四(si)氟乙(yi)烯等(deng)材料具有良好的自(zi)潤滑性,與(yu)球體的摩(mo)擦(ca)損小,故球閥(fa)的使用(yong)壽命長。
5、操作(zuo)力矩小(xiao),流通能(neng)力大、壓力損失小(xiao)、使用壽命長(chang)、表面鍍(du)鉻、外形(xing)美(mei)觀(guan)、結構簡單,維修(xiu)更換(huan)方便(bian)。
執行機構:
采用(yong)GT、AT、AW型(xing)系(xi)列氣(qi)動執(zhi)行(xing)器,有(you)雙(shuang)作用(yong)式(shi)和單作用(yong)式(shi)(彈簧(huang)復位(wei)),齒(chi)輪齒(chi)條(tiao)傳動,安全可(ke)靠;大(da)口徑閥門采用(yong)系(xi)列AW型(xing)氣(qi)動執(zhi)行(xing)器拔叉式(shi)傳動,結構合理(li),輸出(chu)扭(niu)矩大(da),有(you)雙(shuang)作用(yong)式(shi)和單作用(yong)式(shi)。
1、齒輪式雙活塞,輸出力矩大,體積小。
2、氣缸選用(yong)鋁合金材料(liao),重(zhong)量輕、外形美觀。
3、可(ke)在頂部、底部安裝(zhuang)手(shou)動(dong)操作機構。
4、齒條式連接(jie)可調節開啟角(jiao)度、額定流(liu)量。
5、執(zhi)行器可選(xuan)帶電(dian)訊號反饋指(zhi)示及各(ge)類(lei)附件(jian)以實現(xian)自動化操作。
6、IS05211標準連接為產品(pin)的安(an)裝更換提供了(le)方便(bian)。
7、兩端調的(de)節螺釘(ding)可使標準產(chan)品在0°和(he)90°有±4°的(de)可調范圍(wei)。確保(bao)與閥門的(de)同(tong)步精(jing)度。
單作用氣動執行器和雙作用氣動執行器的區別:
氣動球閥中單作用和雙作用指的是氣動球閥所配氣動執行器可分為單作用和雙作用。其區別在于:單作用的氣缸內有彈簧,而雙作用內沒有。因此單作用氣動執行器的價格比雙作用氣動執行器的價格要高。
單(dan)作用(yong)(yong)氣(qi)(qi)(qi)動(dong)執(zhi)行器(qi)一般分為(wei)常(chang)開(kai)型(xing)和常(chang)閉型(xing)(常(chang)開(kai)型(xing):通氣(qi)(qi)(qi)關(guan)(guan),斷(duan)氣(qi)(qi)(qi)開(kai);常(chang)閉型(xing):通氣(qi)(qi)(qi)開(kai),斷(duan)氣(qi)(qi)(qi)關(guan)(guan)),也就(jiu)(jiu)(jiu)是說,在(zai)(zai)安裝(zhuang)之(zhi)前有一個設定,設定其(qi)為(wei)開(kai)或(huo)者(zhe)關(guan)(guan),如(ru)果(guo)是常(chang)開(kai)的(de),那(nei)就(jiu)(jiu)(jiu)是在(zai)(zai)通氣(qi)(qi)(qi)的(de)情(qing)況(kuang)下(xia)氣(qi)(qi)(qi)動(dong)執(zhi)行器(qi)關(guan)(guan)閉閥門,如(ru)果(guo)氣(qi)(qi)(qi)源出現故障或(huo)者(zhe)突(tu)然停電,單(dan)作用(yong)(yong)氣(qi)(qi)(qi)動(dong)執(zhi)行器(qi)靠彈簧(huang)自動(dong)復位為(wei)開(kai)的(de)狀態(tai),也就(jiu)(jiu)(jiu)是說會回到它的(de)設定狀態(tai),設定為(wei)關(guan)(guan),則會回到關(guan)(guan)的(de)狀態(tai),一般在(zai)(zai)危險的(de)工況(kuang)中使用(yong)(yong)較多,比如(ru)輸送可燃(ran)氣(qi)(qi)(qi)體或(huo)可燃(ran)液體,在(zai)(zai)失去氣(qi)(qi)(qi)源又出現緊急情(qing)況(kuang)的(de)時候(hou),單(dan)作用(yong)(yong)氣(qi)(qi)(qi)動(dong)執(zhi)行機構能自動(dong)復位把危險降(jiang)低,而雙作用(yong)(yong)就(jiu)(jiu)(jiu)不能復位。
雙作用氣(qi)(qi)動(dong)執(zhi)行器(qi)(qi)在(zai)(zai)通(tong)氣(qi)(qi)的情況下氣(qi)(qi)動(dong)執(zhi)行器(qi)(qi)打開閥(fa)門,當要關(guan)閉(bi)閥(fa)門的時候(hou)另外(wai)一邊(bian)通(tong)氣(qi)(qi)才能關(guan)閉(bi),雙作用氣(qi)(qi)動(dong)執(zhi)行器(qi)(qi)是(shi)靠氣(qi)(qi)缸工作復位的,在(zai)(zai)失去(qu)氣(qi)(qi)源的時候(hou)只能保持(chi)原位。
附件的選項:
根據不同控制和要求可選擇下列附件:
切斷(duan)型附件(jian):單電控(kong)電磁閥(fa)、雙(shuang)電控(kong)電磁閥(fa)、限位開關回訊器(qi)。
調節型附件(jian):電氣(qi)定位器、氣(qi)動定位器、電氣(qi)轉換器。
氣(qi)源處(chu)理附件(jian):空(kong)氣(qi)過(guo)濾(lv)減壓閥、氣(qi)源處(chu)理三(san)聯件(jian)。
手(shou)動機構:HVSD手(shou)操機構
配套氣動執行器及氣動附件功能和用途(可選):
1、雙作用執行器:控制閥門的開啟和關閉。
2、單作用執行器(彈簧復位):在電路氣路切斷或者有故障時自動關閉閥門。
3、單控電磁閥:供電時閥門打開或者關閉,斷電時閥門關閉或者打開(可提供防爆型)。
4、雙控電磁閥:一個線圈通電時閥門打開,另一個線圈通電時閥門關閉,有記憶功能(可提供防爆型)。
5、限位開關回信器:遠距離傳送閥門開和關位置信號(可提供防爆型)。
6、電氣定位器:根據電流信號(4-20mA)的大小對閥門的介質流量調節控制(可提供防爆型)。
7、氣動定位器:根據氣壓信號(標準0.02-0.1MPa)的大小對閥門的介質流量調節控制。
8、電氣轉換器:將電流信號轉換成氣壓信號,與氣動定位器配套使用(可提供防爆型)。
9、氣源處理三聯件:包括空氣減壓閥、過濾器、油霧器、對氣源穩定、清潔、運動部件起潤滑作用。
10、手(shou)動操(cao)作:自(zi)動控(kong)制在不正(zheng)常(chang)情況下可(ke)以手(shou)動操(cao)作閥門的啟閉。
單電控電磁閥和雙電控電磁閥的區別:
單電控:即只有(you)一(yi)(yi)(yi)個電(dian)(dian)磁(ci)線圈(quan)(quan),一(yi)(yi)(yi)般(ban)用(yong)在(zai)2位(wei)(wei)3通(tong)電(dian)(dian)磁(ci)閥(fa),線圈(quan)(quan)電(dian)(dian)壓等級一(yi)(yi)(yi)般(ban)采用(yong)DC24V、AC220V等。 兩(liang)位(wei)(wei)三(san)通(tong)電(dian)(dian)磁(ci)閥(fa)分為常(chang)(chang)(chang)閉型和常(chang)(chang)(chang)開型兩(liang)種,常(chang)(chang)(chang)閉型指(zhi)線圈(quan)(quan)沒通(tong)電(dian)(dian)時氣(qi)路(lu)是(shi)斷(duan)(duan)(duan)的,常(chang)(chang)(chang)開型指(zhi)線圈(quan)(quan)沒通(tong)電(dian)(dian)時氣(qi)路(lu)是(shi)通(tong)的。 常(chang)(chang)(chang)閉型兩(liang)位(wei)(wei)三(san)通(tong)電(dian)(dian)磁(ci)閥(fa)動(dong)作原理(li):給(gei)線圈(quan)(quan)通(tong)電(dian)(dian),氣(qi)路(lu)接通(tong),線圈(quan)(quan)一(yi)(yi)(yi)旦斷(duan)(duan)(duan)電(dian)(dian),氣(qi)路(lu)就會斷(duan)(duan)(duan)開,這相當(dang)于“點動(dong)"。 常(chang)(chang)(chang)開型兩(liang)位(wei)(wei)三(san)通(tong)單(dan)電(dian)(dian)控電(dian)(dian)磁(ci)閥(fa)動(dong)作原理(li):給(gei)線圈(quan)(quan)通(tong)電(dian)(dian),氣(qi)路(lu)斷(duan)(duan)(duan)開,線圈(quan)(quan)一(yi)(yi)(yi)旦斷(duan)(duan)(duan)電(dian)(dian),氣(qi)路(lu)就會接通(tong),這也是(shi)“點動(dong)"。
雙電控:即(ji)有(you)兩個電(dian)(dian)磁線(xian)(xian)圈(quan),一般用在兩位五通(tong)(tong)(tong)(tong)(tong)電(dian)(dian)磁閥(fa)(fa),兩位五通(tong)(tong)(tong)(tong)(tong)雙電(dian)(dian)控(kong)(kong)電(dian)(dian)磁閥(fa)(fa)動(dong)(dong)(dong)作(zuo)(zuo)原理:給(gei)正(zheng)動(dong)(dong)(dong)作(zuo)(zuo)線(xian)(xian)圈(quan)通(tong)(tong)(tong)(tong)(tong)電(dian)(dian),則正(zheng)動(dong)(dong)(dong)作(zuo)(zuo)氣(qi)(qi)路接(jie)通(tong)(tong)(tong)(tong)(tong)(正(zheng)動(dong)(dong)(dong)作(zuo)(zuo)出氣(qi)(qi)孔有(you)氣(qi)(qi)),即(ji)使給(gei)正(zheng)動(dong)(dong)(dong)作(zuo)(zuo)線(xian)(xian)圈(quan)斷(duan)電(dian)(dian)后正(zheng)動(dong)(dong)(dong)作(zuo)(zuo)氣(qi)(qi)路仍(reng)然是(shi)接(jie)通(tong)(tong)(tong)(tong)(tong)的(de),將會一直維(wei)持(chi)到(dao)給(gei)反動(dong)(dong)(dong)作(zuo)(zuo)線(xian)(xian)圈(quan)通(tong)(tong)(tong)(tong)(tong)電(dian)(dian)為(wei)(wei)止(zhi)。 給(gei)反動(dong)(dong)(dong)作(zuo)(zuo)線(xian)(xian)圈(quan)通(tong)(tong)(tong)(tong)(tong)電(dian)(dian),則反動(dong)(dong)(dong)作(zuo)(zuo)氣(qi)(qi)路接(jie)通(tong)(tong)(tong)(tong)(tong)(反動(dong)(dong)(dong)作(zuo)(zuo)出氣(qi)(qi)孔有(you)氣(qi)(qi)),即(ji)使給(gei)反動(dong)(dong)(dong)作(zuo)(zuo)線(xian)(xian)圈(quan)斷(duan)電(dian)(dian)后反動(dong)(dong)(dong)作(zuo)(zuo)氣(qi)(qi)路仍(reng)然是(shi)接(jie)通(tong)(tong)(tong)(tong)(tong)的(de),將會一直維(wei)持(chi)到(dao)給(gei)正(zheng)動(dong)(dong)(dong)作(zuo)(zuo)線(xian)(xian)圈(quan)通(tong)(tong)(tong)(tong)(tong)電(dian)(dian)為(wei)(wei)止(zhi)。這相當于(yu)(yu)“自鎖(suo)"。 基(ji)于(yu)(yu)兩位五通(tong)(tong)(tong)(tong)(tong)雙電(dian)(dian)控(kong)(kong)電(dian)(dian)磁閥(fa)(fa)的(de)這種特性,在設計機電(dian)(dian)控(kong)(kong)制回(hui)路或編制PLC程序的(de)時(shi)候,可以(yi)(yi)讓電(dian)(dian)磁閥(fa)(fa)線(xian)(xian)圈(quan)動(dong)(dong)(dong)作(zuo)(zuo)1~2秒就可以(yi)(yi)了,這樣(yang)可以(yi)(yi)保(bao)護電(dian)(dian)磁閥(fa)(fa)線(xian)(xian)圈(quan)不容易損(sun)壞。
主要技術參數:
1、閥體
閥體形式 | 直通鑄造球型閥 |
公稱通徑 | DN15~300mm |
公稱壓力 | PN1.6、2.5、4.0、6.4 MPa;ANSI 150、300LB ;JIS 10、20、30K |
法蘭標準 | JIS、ANSI、GB、JB、HG等(deng) |
連接形式 | 法蘭式(shi)、螺紋式(shi)、焊接式(shi) |
閥蓋形式 | 整體式 |
壓蓋型式 | 螺栓壓緊式 |
密封填料 | V型聚(ju)(ju)四(si)氟(fu)(fu)乙烯(xi)填(tian)料、含浸聚(ju)(ju)四(si)氟(fu)(fu)乙烯(xi)填(tian)料、石棉編(bian)織填(tian)料、柔性石墨 |
2、閥內件
閥芯形式 | O型球體閥芯 |
流量特性 | 快開特性 |
3、執行機構
執行器型號 | GT、AT、AW系列單雙作用氣動(dong)執行器 |
供氣壓力 | 0.4~0.7MPa |
氣源接口 | G1/4"、G1/8"、G3/8"、G1/2" |
環境溫度 | -30~+70℃ |
作用形式 | 單作用執行機構:氣關式(B)--失氣時閥位開(FO);氣開式(K)--失氣時閥位關(FC) |
可配附件 | 定位(wei)器、電磁(ci)閥(fa)、空氣(qi)過濾減壓器、保位(wei)閥(fa)、行(xing)程開關、閥(fa)位(wei)傳送器、手輪機構等 |
4、流量系數Kv
公稱(cheng)通(tong)徑 DN(mm) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 |
額定流量系數KV | 21 | 38 | 72 | 112 | 170 | 273 | 384 | 512 | 940 | 1452 | 2222 | 3589 | 5128 | 7359 |
主要外形及連接尺寸:
公稱通徑 DN(mm) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 |
L | 130 | 140 | 150 | 165 | 180 | 200 | 220 | 250 | 280 | 320 | 360 | 400 | 630 | 750 |
H | 44.5 | 49 | 55 | 65 | 65 | 75 | 90 | 95 | 115 | 127 | 140 | 172.5 | 310 | 350 |
H1 | 根據所配執行機構(gou)而定 | |||||||||||||
D | 95 | 105 | 115 | 140 | 150 | 165 | 185 | 200 | 220 | 250 | 285 | 340 | 405 | 460 |
D1 | 65 | 75 | 85 | 100 | 110 | 125 | 145 | 160 | 180 | 210 | 240 | 295 | 355 | 410 |
D2 | 46 | 56 | 65 | 76 | 84 | 99 | 118 | 132 | 156 | 184 | 211 | 266 | 319 | 370 |
n-φd | 4-14 | 4-14 | 4-14 | 4-18 | 4-18 | 4-18 | 4-18 | 8-18 | 8-18 | 8-18 | 8-22 | 12-22 | 12-26 | 12-26 |
A、A1 | 根據(ju)閥(fa)門所(suo)需力矩而定(ding),配置機型不(bu)同,外(wai)形尺寸也不(bu)相同 |
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