half sunk rivet 半埋头铆钉
half-counter-sunk rivet head 半埋头式铆钉头
round head counter sunk rivet 埋头圆顶铆钉
sunk head rivet 埋头铆钉
counter sunk head rivet 埋头铆钉
counter sunk oval head rivet 埋头凸顶铆钉
counter sunk flat head rivet 埋头平顶铆钉
sunk-head rivet 埋头铆钉
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counter sunk head rivet
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