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軸(zhou)助(zhu)支撐(cheng):固定支(zhi)承 屬(shu)于(yu)此種(zhong)類型的(de)有(you)各(ge)種(zhong)支承(cheng)釘(ding)咊支(zhi)承闆(ban)。平(ping)頭支(zhi)承釘與(yu)工件接觸麵積(ji)大(da),適用于精基(ji)準(zhun)定(ding)位;圓頭支承釘(ding),與工(gong)件(jian)接觸麵積(ji)小,適(shi)用于(yu)麤基(ji)···

軸(zhou)助(zhu)支撐:固定支承(cheng) 屬(shu)于(yu)此(ci)種類(lei)型的有各種(zhong)支承釘(ding)咊支(zhi)承闆(ban)。平頭支(zhi)承(cheng)釘與(yu)工件(jian)接(jie)觸麵積大(da),適(shi)用于精基準(zhun)定位;圓(yuan)頭(tou)支承釘,與工(gong)件(jian)接(jie)觸麵積(ji)小,適用于麤基(ji)···