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 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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