counter sunk head

短语词组

短語

• Counter -sunk head 埋頭;靜心
• counter sunk head rivet 埋頭鉚釘
• counter sunk head bolt 埋頭螺栓
• counter sunk ovel head rievt 埋頭凸頂鉚釘
• counter sunk oval head rivet 埋頭凸頂鉚釘
• counter sunk flat head rivet 埋頭平頂鉚釘
• half -counter-sunk rivet head 半埋頭式鉚釘頭
• round head counter sunk rivet 埋頭圓頂鉚釘
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