複合鑽尾螺絲 × 複合鑽尾螺絲 原產地:台灣 立即詢問產品 加入詢問清單 詳細規格及用途描述 Bi-metal self-drilling screws are combined with stainless steel and carbon steel. With the two different materials, bi-metal self-drilling screws are hard enough to drill steel plates and also antirust.