closed end needle 中文意思是什麼
closed end needle
解釋
閉端針-
Needle roller bearings ; drawn cups with open ends, drawn cups with closed end, with cage
滾針軸承.帶封頭的軸套帶保持架的帶封頭的軸套 -
Standard specification for bearing, roller, needle : drawn outer ring, full complement, without inner ring, open and closed end, standard type
滾針滾柱軸承標準規范:拉制外環完全配套無內環開端和閉端標準型
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