necked bolt 中文意思是什麼
necked bolt
解釋
長頸螺栓-
Bolt, hexagonal head, necked shank, for tensile application. iso thread 4g class
細桿六角頭承拉螺栓. iso螺紋4g級 -
Bolt, hexagonal head, necked shank, for tensile application. iso thread 4h class
細頸桿六角頭承拉螺栓. iso螺紋4h級 -
Bolt, hexagonal head, necked shank, with locking hole, for tensile application. iso thread 4h class
細頸桿有鎖孔六角頭承拉螺栓. iso螺紋4h級
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