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    上海底特精密緊固件股份有限公司(以下簡稱上海底特)創建于2001年。專業生產施必牢?自鎖防松緊固件和防松螺紋工具。上海底特所生產的自鎖防松緊固件和防松螺紋工具,采用美國施必牢?防松螺紋技術,具有結構簡單、防松性能良好、可重復使用等優點,是對傳統螺紋技術的一項重大突破。 上海底特公司經過不斷開拓產品被廣泛應用于汽車、工程機械、鐵路、城軌、橋梁、港口機械、航空、**器械、電子設備等許多行業和領域,特別是被指定用于青藏鐵路、磁浮工程、東海大橋、杭州灣跨海大橋、青島四方龐巴迪高級客車等多項**大型工程上。已擁有包括一汽、東風、宇通、金龍、上汽、重汽、陜汽、上柴,大柴、福田重工、三一重工、成工、長春客車廠、寶雞橋梁廠、寶雞石油機械廠,齊齊哈爾機車車輛廠、西安飛機制造廠等五十幾家大型國企單位。

    上海M14防松螺帽報價 服務為先 上海底特精密緊固件股份供應

    2025-11-12 20:12:32

    在(zai)(zai)機械緊(jin)(jin)固(gu)領域,防(fang)(fang)(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao)以其別具一(yi)格的(de)(de)設計,與(yu)普通螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao)形(xing)成了(le)(le)鮮明反差。普通螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao)主要依賴摩(mo)擦力(li)來實現緊(jin)(jin)固(gu),一(yi)旦處于振(zhen)動(dong)或沖擊環境中(zhong),便極易出(chu)現松(song)(song)(song)動(dong)。防(fang)(fang)(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao)則不(bu)同,它運(yun)用(yong)多種創新設計,成功(gong)攻克這一(yi)難題。除(chu)了(le)(le)常見的(de)(de)雙螺(luo)(luo)(luo)母(mu)、彈簧墊圈結構,還(huan)有(you)一(yi)類嵌入尼龍圈的(de)(de)防(fang)(fang)(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao)。尼龍圈具備出(chu)色的(de)(de)彈性與(yu)摩(mo)擦力(li),在(zai)(zai)安裝(zhuang)時(shi)受到擠壓會(hui)發生形(xing)變,緊(jin)(jin)緊(jin)(jin)貼合螺(luo)(luo)(luo)栓螺(luo)(luo)(luo)紋(wen)(wen),大(da)(da)幅增(zeng)強防(fang)(fang)(fang)松(song)(song)(song)效果。楔形(xing)防(fang)(fang)(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao)也是(shi)常見類型之一(yi),其螺(luo)(luo)(luo)紋(wen)(wen)牙型帶(dai)有(you)特(te)殊的(de)(de)楔形(xing)斜面,裝(zhuang)配后在(zai)(zai)軸向力(li)作(zuo)用(yong)下(xia),螺(luo)(luo)(luo)紋(wen)(wen)間能(neng)產生強大(da)(da)摩(mo)擦力(li),有(you)效預防(fang)(fang)(fang)松(song)(song)(song)動(dong)。在(zai)(zai)新興應用(yong)場景(jing)里,防(fang)(fang)(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao)起著舉足輕(qing)重的(de)(de)作(zuo)用(yong)。以無人(ren)機制造為例(li),無人(ren)機飛行時(shi)部件(jian)需承受復雜的(de)(de)振(zhen)動(dong)與(yu)沖擊,防(fang)(fang)(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao)可(ke)確保各零部件(jian)連接穩固(gu),為飛行**筑(zhu)牢堅(jian)實防(fang)(fang)(fang)線。在(zai)(zai)智能(neng)機器人(ren)領域,其關節(jie)部位運(yun)動(dong)頻繁(fan),對裝(zhuang)配精(jing)度要求極高,防(fang)(fang)(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao)能(neng)夠維(wei)持高精(jing)度裝(zhuang)配,防(fang)(fang)(fang)止部件(jian)位移,保證機器人(ren)動(dong)作(zuo)無誤。從維(wei)護成本來看,普通螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao)松(song)(song)(song)動(dong)后,需頻繁(fan)檢查與(yu)緊(jin)(jin)固(gu),這無疑(yi)增(zeng)加了(le)(le)人(ren)力(li)和(he)物力(li)成本。而防(fang)(fang)(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao)憑借(jie)高可(ke)靠性,大(da)(da)幅降低(di)了(le)(le)維(wei)護頻率。從長期運(yun)行考量,能(neng)為企業節(jie)省(sheng)可(ke)觀成本,在(zai)(zai)追求高效、穩定的(de)(de)現代工業生產中(zhong),優勢極為明顯。上(shang)海(hai)底(di)特(te)精(jing)密緊(jin)(jin)固(gu)件(jian)股份有(you)限公司為您提供防(fang)(fang)(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao) ,期待為您服務!上(shang)海(hai)M14防(fang)(fang)(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)(mao)(mao)報價

    普通(tong)螺(luo)(luo)(luo)帽(mao)(mao)結(jie)構較(jiao)為(wei)常規,內外螺(luo)(luo)(luo)紋(wen)(wen)簡單(dan)配合(he)(he),依靠螺(luo)(luo)(luo)紋(wen)(wen)自身的(de)摩擦(ca)力和預(yu)緊(jin)力實(shi)現緊(jin)固。而防(fang)(fang)松螺(luo)(luo)(luo)帽(mao)(mao)設計(ji)獨特(te),像楔(xie)緊(jin)式防(fang)(fang)松螺(luo)(luo)(luo)帽(mao)(mao),螺(luo)(luo)(luo)帽(mao)(mao)與(yu)螺(luo)(luo)(luo)栓(shuan)配合(he)(he)處構造特(te)殊,擰(ning)緊(jin)時會(hui)形成斜楔(xie)狀(zhuang)接(jie)觸(chu)區(qu)域,在震動、沖擊(ji)外力下(xia),能(neng)(neng)動態調(diao)節(jie)摩擦(ca)力,強化(hua)楔(xie)緊(jin)力。還有齒(chi)形防(fang)(fang)松螺(luo)(luo)(luo)帽(mao)(mao),齒(chi)牙(ya)細密(mi)均勻分(fen)布,與(yu)螺(luo)(luo)(luo)栓(shuan)螺(luo)(luo)(luo)紋(wen)(wen)緊(jin)密(mi)咬合(he)(he),極大(da)增強了連接(jie)穩(wen)定性(xing)(xing)(xing),普通(tong)螺(luo)(luo)(luo)帽(mao)(mao)難以企及。普通(tong)螺(luo)(luo)(luo)帽(mao)(mao)對(dui)材(cai)質要(yao)求相對(dui)基礎,多(duo)選用普通(tong)碳(tan)鋼等常見材(cai)料(liao),滿足一般(ban)緊(jin)固需求即可。防(fang)(fang)松螺(luo)(luo)(luo)帽(mao)(mao)由(you)于要(yao)在惡劣(lie)環(huan)境和復雜工況下(xia)保持(chi)性(xing)(xing)(xing)能(neng)(neng),通(tong)常采用**度(du)、耐(nai)腐蝕(shi)的(de)合(he)(he)金材(cai)料(liao)。這些材(cai)料(liao)機械性(xing)(xing)(xing)能(neng)(neng)出色,能(neng)(neng)承受巨大(da)拉力和壓(ya)力而不(bu)易變形,還具備良好(hao)(hao)的(de)耐(nai)腐蝕(shi)特(te)性(xing)(xing)(xing),在化(hua)學腐蝕(shi)、氧化(hua)環(huan)境中也能(neng)(neng)穩(wen)定工作,為(wei)防(fang)(fang)松性(xing)(xing)(xing)能(neng)(neng)提供堅實(shi)物質保障。上海藍白(bai)鋅防(fang)(fang)松螺(luo)(luo)(luo)帽(mao)(mao)哪家好(hao)(hao)陶瓷涂層防(fang)(fang)松螺(luo)(luo)(luo)帽(mao)(mao),耐(nai)磨(mo)且(qie)絕緣,在高磨(mo)損、電氣(qi)環(huan)境下(xia)穩(wen)定防(fang)(fang)松,延長(chang)使用壽命(ming)。

    在(zai)(zai)材(cai)料(liao)創新上(shang),防(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)不斷突破。部分(fen)防(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)采用(yong)了新型合金材(cai)料(liao),這(zhe)種材(cai)料(liao)不僅具備(bei)(bei)大(da)(da)強度,能承受更(geng)大(da)(da)的緊固(gu)力,而且抗(kang)疲勞性(xing)能出(chu)色,有(you)效(xiao)應(ying)對長期(qi)振(zhen)動(dong)工(gong)況。同時(shi),一些防(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)表面采用(yong)特殊(shu)涂層(ceng)處理,如(ru)納米陶瓷涂層(ceng),既提升了耐磨性(xing),又增強了防(fang)腐蝕(shi)能力,適(shi)用(yong)于(yu)潮(chao)濕(shi)、酸堿等(deng)惡劣環境(jing)(jing)。在(zai)(zai)極(ji)端環境(jing)(jing)應(ying)用(yong)中,防(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)表現出(chu)色。在(zai)(zai)深海探(tan)測(ce)設備(bei)(bei)里,巨大(da)(da)水壓與(yu)海水腐蝕(shi)并存,防(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)憑借特殊(shu)密封結構和耐腐蝕(shi)材(cai)料(liao),確保(bao)設備(bei)(bei)部件連接牢固(gu),維(wei)持設備(bei)(bei)正(zheng)常運(yun)(yun)行。在(zai)(zai)高溫(wen)高壓的化工(gong)反(fan)(fan)應(ying)釜上(shang),防(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)能抵(di)御高溫(wen)帶來的材(cai)料(liao)性(xing)能變化和高壓產(chan)生的應(ying)力,保(bao)障反(fan)(fan)應(ying)釜**運(yun)(yun)行。展望(wang)未來,防(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)將(jiang)(jiang)朝著智(zhi)能化方向發(fa)(fa)展。研發(fa)(fa)人員正(zheng)致力于(yu)將(jiang)(jiang)傳(chuan)感(gan)器集(ji)成到防(fang)松(song)(song)(song)螺(luo)(luo)(luo)帽(mao)(mao)中,實時(shi)監測(ce)螺(luo)(luo)(luo)母的緊固(gu)狀態。一旦出(chu)現松(song)(song)(song)動(dong)跡象,可及時(shi)發(fa)(fa)出(chu)警(jing)報,便于(yu)工(gong)作人員維(wei)護,進一步提升設備(bei)(bei)運(yun)(yun)行的**性(xing)與(yu)穩定性(xing),在(zai)(zai)更(geng)多領(ling)域發(fa)(fa)揮更(geng)大(da)(da)作用(yong)。

    防(fang)(fang)(fang)松(song)(song)螺(luo)(luo)(luo)(luo)帽(mao)(mao)在機械(xie)領域中扮(ban)演(yan)著至關(guan)重要(yao)的(de)(de)(de)(de)角色,是保障(zhang)各(ge)類設(she)(she)備(bei)穩(wen)定運行的(de)(de)(de)(de)基(ji)礎(chu)元(yuan)件(jian)。其精(jing)巧的(de)(de)(de)(de)設(she)(she)計,堪稱實(shi)現高效防(fang)(fang)(fang)松(song)(song)功能的(de)(de)(de)(de)關(guan)鍵。例(li)如(ru),一些防(fang)(fang)(fang)松(song)(song)螺(luo)(luo)(luo)(luo)帽(mao)(mao)采(cai)用(yong)(yong)雙螺(luo)(luo)(luo)(luo)母(mu)結構(gou),主(zhu)螺(luo)(luo)(luo)(luo)母(mu)負責施加(jia)緊(jin)固(gu)力(li)(li),副螺(luo)(luo)(luo)(luo)母(mu)則與主(zhu)螺(luo)(luo)(luo)(luo)母(mu)相互(hu)作用(yong)(yong),產生反向摩(mo)擦(ca)力(li)(li),有(you)效防(fang)(fang)(fang)止螺(luo)(luo)(luo)(luo)母(mu)松(song)(song)動。還(huan)有(you)一些防(fang)(fang)(fang)松(song)(song)螺(luo)(luo)(luo)(luo)帽(mao)(mao)使用(yong)(yong)彈簧墊圈,墊圈的(de)(de)(de)(de)彈性(xing)形變(bian)能夠在螺(luo)(luo)(luo)(luo)母(mu)與被(bei)連(lian)接件(jian)之間持續(xu)保持壓(ya)力(li)(li),即便遭遇強烈(lie)(lie)振動,也能維持緊(jin)固(gu)狀態。回顧(gu)防(fang)(fang)(fang)松(song)(song)螺(luo)(luo)(luo)(luo)帽(mao)(mao)的(de)(de)(de)(de)發(fa)(fa)展歷程,它始終(zhong)與工(gong)(gong)業發(fa)(fa)展緊(jin)密相連(lian),不斷革(ge)新。早期(qi)采(cai)用(yong)(yong)簡單的(de)(de)(de)(de)開(kai)(kai)槽螺(luo)(luo)(luo)(luo)母(mu)搭配(pei)開(kai)(kai)口(kou)銷的(de)(de)(de)(de)方式,開(kai)(kai)啟了防(fang)(fang)(fang)松(song)(song)技(ji)(ji)術的(de)(de)(de)(de)先河。隨(sui)著科技(ji)(ji)的(de)(de)(de)(de)飛速發(fa)(fa)展,新型材料與先進(jin)工(gong)(gong)藝不斷涌現,如(ru)表面處(chu)理(li)技(ji)(ji)術的(de)(de)(de)(de)改進(jin),提升(sheng)了螺(luo)(luo)(luo)(luo)帽(mao)(mao)的(de)(de)(de)(de)耐腐蝕性(xing)能,使其在惡劣環境下仍能穩(wen)定可靠(kao)地工(gong)(gong)作。如(ru)今,防(fang)(fang)(fang)松(song)(song)螺(luo)(luo)(luo)(luo)帽(mao)(mao)在船(chuan)舶制(zhi)造領域保障(zhang)船(chuan)體結構(gou)**,在風力(li)(li)發(fa)(fa)電設(she)(she)施中抵御強風引發(fa)(fa)的(de)(de)(de)(de)劇烈(lie)(lie)振動,在橋(qiao)梁建設(she)(she)工(gong)(gong)程中穩(wen)固(gu)橋(qiao)梁的(de)(de)(de)(de)關(guan)鍵部件(jian)。在各(ge)個行業,防(fang)(fang)(fang)松(song)(song)螺(luo)(luo)(luo)(luo)帽(mao)(mao)都憑借其出色可靠(kao)的(de)(de)(de)(de)性(xing)能,成為確保設(she)(she)備(bei)**、延長設(she)(she)備(bei)使用(yong)(yong)壽命的(de)(de)(de)(de)關(guan)鍵部件(jian),持續(xu)為工(gong)(gong)業生產的(de)(de)(de)(de)順利進(jin)行和日常生活(huo)的(de)(de)(de)(de)有(you)序運轉發(fa)(fa)揮(hui)重要(yao)作用(yong)(yong)。上(shang)海(hai)底特精(jing)密緊(jin)固(gu)件(jian)股份(fen)有(you)限公(gong)司(si)致力(li)(li)于(yu)提供防(fang)(fang)(fang)松(song)(song)螺(luo)(luo)(luo)(luo)帽(mao)(mao) ,竭誠(cheng)為您服務。

    施(shi)(shi)必(bi)牢(lao)(lao)防松(song)(song)螺(luo)(luo)帽(mao)(mao)(mao)的(de)(de)精妙設計(ji),在(zai)于其(qi)獨特的(de)(de)螺(luo)(luo)紋(wen)牙(ya)型。當螺(luo)(luo)栓(shuan)(shuan)旋入螺(luo)(luo)帽(mao)(mao)(mao),30 度楔形斜面迫使螺(luo)(luo)栓(shuan)(shuan)牙(ya)尖緊(jin)緊(jin)嵌入,螺(luo)(luo)紋(wen)間(jian)接觸不再局限于普通(tong)的(de)(de)線(xian)接觸,而(er)是擴展(zhan)為面接觸。這種接觸方(fang)式(shi),極大(da)增加了螺(luo)(luo)紋(wen)副間(jian)的(de)(de)摩擦(ca)面積,摩擦(ca)力(li)(li)呈數倍提升(sheng)。而(er)且(qie),施(shi)(shi)必(bi)牢(lao)(lao)螺(luo)(luo)帽(mao)(mao)(mao)產生的(de)(de)摩擦(ca)力(li)(li)并(bing)非依(yi)賴于初始(shi)擰(ning)緊(jin)力(li)(li),即使在(zai)長期振(zhen)動、沖擊載荷下,也能穩(wen)定保(bao)持。在(zai)新興的(de)(de)風(feng)(feng)(feng)力(li)(li)發電產業,施(shi)(shi)必(bi)牢(lao)(lao)防松(song)(song)螺(luo)(luo)帽(mao)(mao)(mao)發揮(hui)著關鍵作用(yong)。風(feng)(feng)(feng)機矗立在(zai)曠野,葉(xie)片在(zai)強(qiang)風(feng)(feng)(feng)下高(gao)速(su)(su)旋轉,塔(ta)(ta)筒及各(ge)(ge)連(lian)接部(bu)件(jian)承受巨大(da)振(zhen)動與交(jiao)變(bian)應力(li)(li)。施(shi)(shi)必(bi)牢(lao)(lao)螺(luo)(luo)帽(mao)(mao)(mao)保(bao)障塔(ta)(ta)筒各(ge)(ge)節段連(lian)接緊(jin)密,避免(mian)松(song)(song)動隱患(huan),確保(bao)風(feng)(feng)(feng)機在(zai)惡(e)劣環境下**穩(wen)定運(yun)行。在(zai)軌道交(jiao)通(tong)領域,列車(che)(che)高(gao)速(su)(su)行駛(shi)產生的(de)(de)高(gao)頻振(zhen)動對零部(bu)件(jian)連(lian)接要求極高(gao),施(shi)(shi)必(bi)牢(lao)(lao)防松(song)(song)螺(luo)(luo)帽(mao)(mao)(mao)用(yong)于軌道扣件(jian)、車(che)(che)輛底盤連(lian)接,有效防止因松(song)(song)動引發的(de)(de)**事故(gu),保(bao)障行車(che)(che)**。因其(qi)可靠性能,施(shi)(shi)必(bi)牢(lao)(lao)防松(song)(song)螺(luo)(luo)帽(mao)(mao)(mao)在(zai)這些新興行業中,成為保(bao)障設備高(gao)效運(yun)轉、降低維護(hu)成本的(de)(de)優先,助(zhu)力(li)(li)行業蓬勃發展(zhan)。防松(song)(song)螺(luo)(luo)帽(mao)(mao)(mao)有機械(xie)、鉚(liu)沖、摩擦(ca)、構造等(deng)多種防松(song)(song)類型,滿足(zu)航天、汽車(che)(che)、機械(xie)等(deng)不同領域需求 。上海法蘭防松(song)(song)螺(luo)(luo)帽(mao)(mao)(mao)哪家(jia)好

    可調(diao)節防松(song)螺(luo)帽,內(nei)置微(wei)調(diao)裝置,能按需調(diao)整緊固(gu)力,適應不同工況,確保連接(jie)穩固(gu)。上海M14防松(song)螺(luo)帽報價

    在(zai)防(fang)(fang)(fang)(fang)松(song)(song)螺(luo)帽(mao)(mao)(mao)投(tou)入使用前(qian),有(you)著(zhu)嚴格的(de)(de)測試(shi)標準。振(zhen)(zhen)動(dong)(dong)測試(shi)是(shi)(shi)關鍵一(yi)環(huan),模擬設備(bei)(bei)運行(xing)時(shi)的(de)(de)振(zhen)(zhen)動(dong)(dong)環(huan)境,將安裝(zhuang)(zhuang)好防(fang)(fang)(fang)(fang)松(song)(song)螺(luo)帽(mao)(mao)(mao)的(de)(de)試(shi)件(jian)置于(yu)(yu)振(zhen)(zhen)動(dong)(dong)臺(tai)上,持(chi)續振(zhen)(zhen)動(dong)(dong)一(yi)定(ding)時(shi)長,觀察(cha)螺(luo)帽(mao)(mao)(mao)是(shi)(shi)否(fou)松(song)(song)動(dong)(dong)。依(yi)據行(xing)業(ye)規(gui)(gui)范,若在(zai)規(gui)(gui)定(ding)時(shi)間內,螺(luo)帽(mao)(mao)(mao)位移量超出極小的(de)(de)允許(xu)范圍(wei),便判(pan)定(ding)為不合(he)格。還(huan)有(you)扭(niu)(niu)矩(ju)測試(shi),通過專業(ye)扭(niu)(niu)矩(ju)扳手擰緊防(fang)(fang)(fang)(fang)松(song)(song)螺(luo)帽(mao)(mao)(mao),記錄達到規(gui)(gui)定(ding)扭(niu)(niu)矩(ju)值時(shi)的(de)(de)操作情況,以及(ji)(ji)后續扭(niu)(niu)矩(ju)保(bao)持(chi)能力,以此評(ping)估螺(luo)帽(mao)(mao)(mao)在(zai)緊固(gu)(gu)力方面(mian)的(de)(de)表現(xian)。日常維護對防(fang)(fang)(fang)(fang)松(song)(song)螺(luo)帽(mao)(mao)(mao)性能維持(chi)至(zhi)關重(zhong)要。定(ding)期(qi)檢(jian)查(cha)是(shi)(shi)基礎,查(cha)看螺(luo)帽(mao)(mao)(mao)外觀有(you)無變形(xing)、裂縫,以及(ji)(ji)安裝(zhuang)(zhuang)部位是(shi)(shi)否(fou)有(you)松(song)(song)動(dong)(dong)跡象。對于(yu)(yu)長期(qi)處于(yu)(yu)惡(e)劣環(huan)境,如(ru)潮濕(shi)、高溫的(de)(de)防(fang)(fang)(fang)(fang)松(song)(song)螺(luo)帽(mao)(mao)(mao),更(geng)(geng)要增加檢(jian)查(cha)頻(pin)次。當發現(xian)輕微(wei)松(song)(song)動(dong)(dong)時(shi),及(ji)(ji)時(shi)用合(he)適(shi)工具按規(gui)(gui)定(ding)扭(niu)(niu)矩(ju)重(zhong)新(xin)擰緊。若螺(luo)帽(mao)(mao)(mao)出現(xian)嚴重(zhong)磨損或損壞,則(ze)需立即(ji)更(geng)(geng)換。在(zai)更(geng)(geng)換時(shi),要選用適(shi)配的(de)(de)防(fang)(fang)(fang)(fang)松(song)(song)螺(luo)帽(mao)(mao)(mao),并(bing)嚴格按照安裝(zhuang)(zhuang)規(gui)(gui)范操作,確保(bao)新(xin)螺(luo)帽(mao)(mao)(mao)能有(you)效發揮(hui)防(fang)(fang)(fang)(fang)松(song)(song)作用,保(bao)障設備(bei)(bei)連接穩固(gu)(gu),**運行(xing) 。上海M14防(fang)(fang)(fang)(fang)松(song)(song)螺(luo)帽(mao)(mao)(mao)報價

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