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貴港裝修石材批發廠

2020-12-09
貴港裝修石材批發廠

清(qing)(qing)洗、檢驗(yan)及包裝(zhuang)(zhuang)加(jia)工(gong)好的(de)(de)(de)(de)圓柱,經(jing)過清(qing)(qing)洗、檢驗(yan)、干燥后,重(zhong)慶石(shi)材加(jia)工(gong)可以(yi)包裝(zhuang)(zhuang)。圓柱的(de)(de)(de)(de)包裝(zhuang)(zhuang)分成兩個步驟(zou),首先用厚度0.5mm的(de)(de)(de)(de)塑料(liao)薄膜將(jiang)圓柱包封,然(ran)后放(fang)(fang)入木欄(lan)固定。包裝(zhuang)(zhuang)、運輸(shu)時(shi)一定要注意防止磕碰圓柱。重(zhong)慶青(qing)(qing)石(shi)板(ban)材具有(you)一定的(de)(de)(de)(de)特性,耐(nai)凍,易加(jia)工(gong),那么隨著它在建筑行業的(de)(de)(de)(de)廣泛應用,如今已經(jing)成為大(da)眾關(guan)注的(de)(de)(de)(de)焦點(dian),今天重(zhong)慶青(qing)(qing)石(shi)板(ban)材帶(dai)您來看一下(xia):關(guan)于青(qing)(qing)石(shi)板(ban)材安裝(zhuang)(zhuang)的(de)(de)(de)(de)有(you)關(guan)介紹(shao),希望以(yi)下(xia)的(de)(de)(de)(de)介紹(shao)對石(shi)材加(jia)工(gong)的(de)(de)(de)(de)朋(peng)友能有(you)所幫助。1、在安裝(zhuang)(zhuang)青(qing)(qing)石(shi)板(ban)之前,先要做好準(zhun)備工(gong)作。要根據施工(gong)大(da)樣(yang)圖(tu)和(he)(he)加(jia)工(gong)單(dan)為依據,同(tong)時(shi)還要了解(jie)各部(bu)位尺寸的(de)(de)(de)(de)大(da)小和(he)(he)做法,了解(jie)清(qing)(qing)楚邊角、弧(hu)位等部(bu)位之間的(de)(de)(de)(de)關(guan)系。2、在正式(shi)鋪沒(mei)之前,要把青(qing)(qing)石(shi)板(ban)按(an)圖(tu)案、紋理、顏色鮮使拼好,重(zhong)慶青(qing)(qing)石(shi)板(ban)材然(ran)后再講非整(zheng)塊(kuai)的(de)(de)(de)(de)青(qing)(qing)石(shi)板(ban)對稱(cheng)的(de)(de)(de)(de)放(fang)(fang)在邊沿的(de)(de)(de)(de)部(bu)位,之后在按(an)兩個方向編號的(de)(de)(de)(de)排列和(he)(he)放(fang)(fang)整(zheng)齊(qi)。

貴港裝修石材批發廠

貴港裝修石材批發長期以(yi)來,國內外專家學者對金(jin)剛(gang)石(shi)(shi)(shi)(shi)(shi)工(gong)(gong)具鋸(ju)(ju)切花崗(gang)(gang)巖(yan)的(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)機(ji)理(li)(li)、金(jin)剛(gang)石(shi)(shi)(shi)(shi)(shi)工(gong)(gong)具的(de)(de)(de)(de)磨損機(ji)理(li)(li),以(yi)及鋸(ju)(ju)切加(jia)(jia)工(gong)(gong)過程(cheng)中的(de)(de)(de)(de)鋸(ju)(ju)切力(li)(li)做了(le)大(da)(da)量(liang)試(shi)驗和(he)研究(jiu)(jiu),取得了(le)令人矚目的(de)(de)(de)(de)成(cheng)果(guo),重慶石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)加(jia)(jia)工(gong)(gong)對石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)鋸(ju)(ju)切加(jia)(jia)工(gong)(gong)及金(jin)剛(gang)石(shi)(shi)(shi)(shi)(shi)工(gong)(gong)具的(de)(de)(de)(de)研究(jiu)(jiu)開發(fa)(fa)起到了(le)積極的(de)(de)(de)(de)推動(dong)作(zuo)(zuo)用(yong)(yong)。裝(zhuang)修(xiu)石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)的(de)(de)(de)(de)運(yun)用(yong)(yong)你可知怎樣選擇一(yi)般咱們(men)的(de)(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)多用(yong)(yong)于修(xiu)建,機(ji)械方面,重慶石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)加(jia)(jia)工(gong)(gong)廠告訴咱們(men)多選用(yong)(yong)哪些石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)!1、大(da)(da)理(li)(li)石(shi)(shi)(shi)(shi)(shi)大(da)(da)理(li)(li)石(shi)(shi)(shi)(shi)(shi)是地(di)殼華夏有(you)的(de)(de)(de)(de)巖(yan)石(shi)(shi)(shi)(shi)(shi)經(jing)過地(di)殼內高溫高壓作(zuo)(zuo)用(yong)(yong)構成(cheng)的(de)(de)(de)(de)變(bian)質(zhi)(zhi)(zhi)巖(yan)。地(di)殼的(de)(de)(de)(de)內力(li)(li)作(zuo)(zuo)用(yong)(yong)促進正(zheng)本(ben)的(de)(de)(de)(de)各類巖(yan)石(shi)(shi)(shi)(shi)(shi)發(fa)(fa)作(zuo)(zuo)質(zhi)(zhi)(zhi)的(de)(de)(de)(de)改(gai)動(dong),即正(zheng)本(ben)巖(yan)石(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)(de)構造(zao)、構造(zao)和(he)礦藏(zang)成(cheng)分發(fa)(fa)作(zuo)(zuo)改(gai)動(dong)。經(jing)過突變(bian)構成(cheng)的(de)(de)(de)(de)新的(de)(de)(de)(de)巖(yan)石(shi)(shi)(shi)(shi)(shi)稱(cheng)為(wei)變(bian)質(zhi)(zhi)(zhi)巖(yan)。由于石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)異形加(jia)(jia)工(gong)(gong)機(ji)械大(da)(da)理(li)(li)石(shi)(shi)(shi)(shi)(shi)一(yi)般都富含(han)雜(za)質(zhi)(zhi)(zhi),并且碳酸鈣在大(da)(da)氣(qi)(qi)中受(shou)二(er)氧化碳、碳化物(wu)、水(shui)氣(qi)(qi)的(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong),也簡略風化和(he)溶蝕(shi),而使表(biao)面很快失(shi)去光(guang)澤。大(da)(da)理(li)(li)石(shi)(shi)(shi)(shi)(shi)一(yi)般性(xing)質(zhi)(zhi)(zhi)比(bi)照軟,這是相(xiang)對于花崗(gang)(gang)石(shi)(shi)(shi)(shi)(shi)而言的(de)(de)(de)(de)。

貴港裝修石材批發廠

主要(yao)的(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)設(she)(she)備(bei)是(shi):自動多頭(tou)連續研磨機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)、金(jin)剛石校平(ping)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)、橋式磨機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)、圓盤磨機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)、逆轉式粗(cu)磨機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)、手(shou)扶磨機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)。3、切(qie)斷(duan)加(jia)(jia)工(gong)(gong)(gong)(gong)切(qie)斷(duan)加(jia)(jia)工(gong)(gong)(gong)(gong)是(shi)用(yong)切(qie)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)將(jiang)毛(mao)(mao)板或拋光板按所需規格尺寸進行定形切(qie)割加(jia)(jia)工(gong)(gong)(gong)(gong)。主要(yao)的(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)設(she)(she)備(bei)是(shi)縱(zong)向(xiang)多鋸片切(qie)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)、橫向(xiang)切(qie)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)、橋式切(qie)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)、懸臂式切(qie)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)、手(shou)搖切(qie)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)等。4、鑿(zao)(zao)切(qie)加(jia)(jia)工(gong)(gong)(gong)(gong)鑿(zao)(zao)切(qie)加(jia)(jia)工(gong)(gong)(gong)(gong)是(shi)傳(chuan)統的(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)方(fang)法,通過(guo)楔(xie)裂、鑿(zao)(zao)打、劈剁(duo)、整(zheng)修、打磨等辦(ban)法將(jiang)毛(mao)(mao)胚加(jia)(jia)工(gong)(gong)(gong)(gong)成所需產(chan)品,其(qi)表面可以是(shi)菠蘿面、龍眼面、荔枝面、自然面、蘑菇面、拉溝面等等。鑿(zao)(zao)切(qie)加(jia)(jia)主要(yao)是(shi)使(shi)用(yong)手(shou)工(gong)(gong)(gong)(gong)加(jia)(jia)工(gong)(gong)(gong)(gong),像是(shi)錘、剁(duo)斧、鏨子、鑿(zao)(zao)子等,不過(guo)有些加(jia)(jia)工(gong)(gong)(gong)(gong)過(guo)程可以使(shi)用(yong)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)器加(jia)(jia)工(gong)(gong)(gong)(gong)完成,重慶石材加(jia)(jia)工(gong)(gong)(gong)(gong)主要(yao)設(she)(she)備(bei)是(shi)劈石機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)、刨石機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)、自動錘鑿(zao)(zao)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)、自動噴砂機(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)等。

貴港裝修石材批發廠

重(zhong)(zhong)慶石材(cai)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)為節約資源(yuan),走可持(chi)續發展(zhan)(zhan)的(de)(de)道路,應充分利(li)用(yong)資源(yuan),對(dui)于市場加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)剩(sheng)下的(de)(de)廢料(如石渣、石粉、石屑),可以(yi)作為生(sheng)產人造(zao)石材(cai)的(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)原料。石材(cai)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)流程鋸(ju)(ju)(ju)割(ge)(ge)(ge)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)--研(yan)磨(mo)(mo)拋(pao)光(guang)--切斷加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)--鑿切加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)--燒(shao)毛(mao)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)--輔(fu)助加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)及檢驗修(xiu)補1、鋸(ju)(ju)(ju)割(ge)(ge)(ge)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)鋸(ju)(ju)(ju)割(ge)(ge)(ge)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)是用(yong)鋸(ju)(ju)(ju)石機(ji)(ji)將(jiang)(jiang)花(hua)(hua)(hua)崗(gang)(gang)石荒(huang)(huang)料鋸(ju)(ju)(ju)割(ge)(ge)(ge)成毛(mao)板(一般厚(hou)度(du)(du)石材(cai)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)流程鋸(ju)(ju)(ju)割(ge)(ge)(ge)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)--研(yan)磨(mo)(mo)拋(pao)光(guang)--切斷加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)--鑿切加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)--燒(shao)毛(mao)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)--輔(fu)助加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)及檢驗修(xiu)補1、鋸(ju)(ju)(ju)割(ge)(ge)(ge)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)鋸(ju)(ju)(ju)割(ge)(ge)(ge)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)是用(yong)鋸(ju)(ju)(ju)石機(ji)(ji)將(jiang)(jiang)花(hua)(hua)(hua)崗(gang)(gang)石荒(huang)(huang)料鋸(ju)(ju)(ju)割(ge)(ge)(ge)成毛(mao)板(一般厚(hou)度(du)(du)為20mm或(huo)10mm),或(huo)條(tiao)狀、塊狀等(deng)形狀的(de)(de)半成品。該(gai)(gai)(gai)工(gong)(gong)(gong)(gong)(gong)序(xu)屬粗(cu)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)序(xu),該(gai)(gai)(gai)工(gong)(gong)(gong)(gong)(gong)序(xu)對(dui)荒(huang)(huang)料的(de)(de)板材(cai)率、板材(cai)質量、企(qi)業的(de)(de)經(jing)濟效益有重(zhong)(zhong)大影響。鋸(ju)(ju)(ju)割(ge)(ge)(ge)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)中主要(yao)的(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)設備是花(hua)(hua)(hua)崗(gang)(gang)石專用(yong)的(de)(de)框架式大型自(zi)動加(jia)(jia)(jia)砂砂鋸(ju)(ju)(ju)、多刀片雙向切機(ji)(ji)、多刀片電腦控制花(hua)(hua)(hua)崗(gang)(gang)石切機(ji)(ji)和花(hua)(hua)(hua)崗(gang)(gang)石圓盤鋸(ju)(ju)(ju)石機(ji)(ji)等(deng)。2、研(yan)磨(mo)(mo)拋(pao)光(guang)研(yan)磨(mo)(mo)拋(pao)光(guang)的(de)(de)目的(de)(de)是將(jiang)(jiang)鋸(ju)(ju)(ju)好的(de)(de)毛(mao)板進(jin)一步加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong),使(shi)其厚(hou)度(du)(du)、平整度(du)(du)、光(guang)澤(ze)度(du)(du)達(da)到要(yao)求。該(gai)(gai)(gai)工(gong)(gong)(gong)(gong)(gong)序(xu)首先需要(yao)要(yao)粗(cu)磨(mo)(mo)校平,然后逐步經(jing)過半細磨(mo)(mo)、細磨(mo)(mo)、精(jing)磨(mo)(mo)及拋(pao)光(guang),重(zhong)(zhong)慶石材(cai)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)把花(hua)(hua)(hua)崗(gang)(gang)巖的(de)(de)顏色(se)紋理完全展(zhan)(zhan)示出(chu)來(lai)。

貴港裝修石材批發廠

一觀(guan):肉眼(yan)觀(guan)察(cha)(cha)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)的(de)(de)(de)(de)(de)表面(mian)結構(gou)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)的(de)(de)(de)(de)(de)好(hao)壞肉眼(yan)即能分辨,好(hao)的(de)(de)(de)(de)(de)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)表面(mian)細(xi)致光滑(hua),質(zhi)量(liang)(liang)差(cha)的(de)(de)(de)(de)(de)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)表面(mian)粗(cu)糙不平(ping),表面(mian)呈顆粒(li)狀組合(he)。此外,石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)邊緣也要(yao)(yao)仔細(xi)觀(guan)察(cha)(cha),是否有缺口,細(xi)微(wei)的(de)(de)(de)(de)(de)裂(lie)痕等,對(dui)日后使用(yong)有著不小(xiao)的(de)(de)(de)(de)(de)影響。二量(liang)(liang):量(liang)(liang)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)的(de)(de)(de)(de)(de)尺(chi)寸(cun)規格在買(mai)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)之前,一定(ding)(ding)要(yao)(yao)先量(liang)(liang)好(hao)裝修尺(chi)寸(cun),然后購買(mai)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)時也要(yao)(yao)對(dui)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)進行測量(liang)(liang),一定(ding)(ding)要(yao)(yao)買(mai)合(he)適尺(chi)寸(cun)的(de)(de)(de)(de)(de),以免后續石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)不夠需(xu)要(yao)(yao)拼(pin)接(jie),這樣極其影響美觀(guan)度。三聽(ting):聽(ting)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)的(de)(de)(de)(de)(de)敲(qiao)(qiao)擊(ji)聲音一般好(hao)的(de)(de)(de)(de)(de)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)敲(qiao)(qiao)擊(ji)起來聲音十(shi)分清脆,原因是石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)內部質(zhi)地均勻(yun)(yun)無裂(lie)隙(xi);相(xiang)反,質(zhi)量(liang)(liang)不好(hao)的(de)(de)(de)(de)(de)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)敲(qiao)(qiao)擊(ji)聲音相(xiang)當粗(cu)啞,因其質(zhi)地不勻(yun)(yun)且里(li)面(mian)很可能存在裂(lie)隙(xi)。四試:用(yong)簡單(dan)的(de)(de)(de)(de)(de)試驗方(fang)法來檢驗石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)質(zhi)量(liang)(liang)好(hao)壞墨水(shui)滴滲法是很常用(yong)的(de)(de)(de)(de)(de)檢驗石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)質(zhi)量(liang)(liang)的(de)(de)(de)(de)(de)方(fang)法,將一小(xiao)滴墨水(shui)滴在石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)背面(mian),若深(shen)入(ru)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)內部則說(shuo)明(ming)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)質(zhi)地不細(xi)致,是質(zhi)量(liang)(liang)差(cha)的(de)(de)(de)(de)(de)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai),反之,若不能滲入(ru)則說(shuo)面(mian)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)質(zhi)量(liang)(liang)較好(hao)。

貴港裝修石材批發廠

機(ji)器研(yan)磨。nJ分為(wei)(wei)5道(dao)l序。①柑磨。柑磨是(shi)為(wei)(wei)了(le)校準板材(cai)(cai)(cai)的(de)(de)平(ping)(ping)堅度(du)與厚(hou)度(du)。②半絀磨。把板材(cai)(cai)(cai)初(chu)步磨絀,使(shi)1E達到(dao)要求(qiu)的(de)(de)平(ping)(ping)度(du)與厚(hou)度(du)。③絀磨。進一(yi)步磨絀是(shi)為(wei)(wei)了(le)將石(shi)材(cai)(cai)(cai)的(de)(de)顏包(bao)(bao)和花(hua)紋恩小(xiao)出來(lai)。④精磨。為(wei)(wei)拋(pao)光(guang)做好準備,使(shi)i.表(biao)(biao)(biao)(biao)(biao)(biao)而(er)有(you)一(yi)定光(guang)澤度(du)。⑤拋(pao)光(guang)。使(shi)石(shi)材(cai)(cai)(cai)表(biao)(biao)(biao)(biao)(biao)(biao)而(er)具(ju)有(you)良好的(de)(de)光(guang)滑度(du),表(biao)(biao)(biao)(biao)(biao)(biao)而(er)具(ju)有(you)大(da)的(de)(de)反射光(guang)線的(de)(de)能力(li),1E…有(you)的(de)(de)花(hua)紋和顏包(bao)(bao)大(da)限度(du)的(de)(de)顯露出來(lai)。一(yi)般情況卜,淺包(bao)(bao)石(shi)材(cai)(cai)(cai)比深包(bao)(bao)石(shi)材(cai)(cai)(cai)拋(pao)光(guang)后的(de)(de)裝飾效(xiao)果更易(yi)展現。(2)火(huo)(huo)焰燒(shao)毛(mao)(mao)。川火(huo)(huo)焰噴射器將錨剴(kai)后的(de)(de)板材(cai)(cai)(cai)表(biao)(biao)(biao)(biao)(biao)(biao)而(er)燒(shao)毛(mao)(mao),使(shi)1E恢復大(da)然表(biao)(biao)(biao)(biao)(biao)(biao)而(er),再川鋼艘刷(shua)刷(shua)掉表(biao)(biao)(biao)(biao)(biao)(biao)而(er)碎(sui)片(pian),再川研(yan)磨機(ji)研(yan)磨,使(shi)表(biao)(biao)(biao)(biao)(biao)(biao)而(er)色彩(cai)和觸感達到(dao)裝飾的(de)(de)要求(qiu)。火(huo)(huo)焰燒(shao)毛(mao)(mao)常川J‘花(hua)崗巖類板材(cai)(cai)(cai)的(de)(de)加II(3)鑿毛(mao)(mao)。此加l方法(fa)分為(wei)(wei)手工(gong)、機(ji)具(ju)與手工(gong)相結合(he)法(fa),傳統的(de)(de)手工(gong)雕琢法(fa)耗人力(li)、周期長,但加工(gong)出的(de)(de)制品表(biao)(biao)(biao)(biao)(biao)(biao)面層(ceng)次豐富、觀(guan)賞性強;而(er)機(ji)具(ju)雕琢法(fa)提供了(le)生產規模(mo)和效(xiao)率。

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