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    金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)纏繞墊(dian)(dian)(dian)(dian)(dian)(dian)、增強復合(he)墊(dian)(dian)(dian)(dian)(dian)(dian)、自(zi)密(mi)封(feng)(feng)填料(liao)(liao)(liao)、柔(rou)(rou)性(xing)(xing)石(shi)墨卷材(cai)等(deng)(deng)(deng)石(shi)墨制品以(yi)及(ji)聚(ju)四氟乙烯(xi)(xi)、石(shi)棉(mian)橡(xiang)膠制品，芳綸、碳纖維、鎳基盤根，金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)環墊(dian)(dian)(dian)(dian)(dian)(dian)，不銹(xiu)鋼材(cai)料(liao)(liao)(liao)等(deng)(deng)(deng)機械密(mi)封(feng)(feng)產品。墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian)（gasket）是兩個(ge)物(wu)體之(zhi)間的機械密(mi)封(feng)(feng)，通常用以(yi)防止兩個(ge)物(wu)體之(zhi)間受(shou)到(dao)壓力、腐蝕、和(he)管路自(zi)然地熱(re)脹(zhang)冷(leng)縮泄漏。由于機械加工(gong)表(biao)面(mian)不可(ke)能完美，使用墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian)即可(ke)填補不規則性(xing)(xing)。墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian)通常由片(pian)(pian)狀材(cai)料(liao)(liao)(liao)制成，如(ru)墊(dian)(dian)(dian)(dian)(dian)(dian)紙(zhi)，橡(xiang)膠，硅橡(xiang)膠，金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)，軟木，毛(mao)氈，氯(lv)丁(ding)(ding)橡(xiang)膠，丁(ding)(ding)腈橡(xiang)膠，玻(bo)璃纖維或塑料(liao)(liao)(liao)聚(ju)合(he)物(wu)（如(ru)聚(ju)四氟乙烯(xi)(xi) ）。特(te)定應用的墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian)可(ke)能含有(you)石(shi)棉(mian)。墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian)按其材(cai)料(liao)(liao)(liao)和(he)結構特(te)征可(ke)分為非金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian)、金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian)、金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)-非金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)組合(he)墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian)大(da)類(lei)，各(ge)(ge)類(lei)又可(ke)細分成若(ruo)干種(zhong)。非金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian),橡(xiang)膠墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian),無石(shi)棉(mian)纖維橡(xiang)膠墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian),柔(rou)(rou)性(xing)(xing)石(shi)墨金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)復合(he)墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian),聚(ju)四氟乙烯(xi)(xi)墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian),聚(ju)四氟乙烯(xi)(xi)包(bao)覆(fu)墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian),金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)包(bao)覆(fu)墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian),金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)纏繞墊(dian)(dian)(dian)(dian)(dian)(dian)片(pian)(pian)。M4-M120高強度螺栓、螺母(mu)、各(ge)(ge)種(zhong)異型(xing)螺栓及(ji)耐低溫零下50度沖擊(ji)試驗螺栓。緊固件(jian)，含不銹(xiu)鋼外六角、內六角、螺栓、螺母(mu)、平墊(dian)(dian)(dian)(dian)(dian)(dian)、異型(xing)件(jian)及(ji)各(ge)(ge)種(zhong)非標(biao)緊固件(jian)等(deng)(deng)(deng)；材(cai)質等(deng)(deng)(deng)級(ji)有(you)4.8級(ji)、6.8級(ji)、8.8級(ji)、10.9級(ji)、12.9級(ji)等(deng)(deng)(deng)；執行標(biao)準包(bao)括國(guo)標(biao)GB、德標(biao)DIN、美標(biao)ANSI、日標(biao)JIS、國(guo)際標(biao)準ISO等(deng)(deng)(deng)．