钻尾螺钉 SELF-DRILLING SCREW
材质GRADE:304、316、410、复合材质
标准STANDARD:DIN7504N 、DIN7504P、DIN7504K、GB15856.1、GB15856.2、GB15856.4、十字华威头钻尾钉、美标六角法兰钻尾钉
规格DIAMETER:ST3.5-ST6.3
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