鉤耳孔 的英文怎麼說
中文拼音 [gōuěrkǒng]
鉤耳孔
英文
coupler knuckle pin hole-
Ramshorn shank hooks ; shank with metric thread, with double lug and with eye
Ramshorn螺紋桿鉤.帶雙耳和帶孔眼的米制螺紋桿
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