镀黄铜薄铁铰链
brass-plated light iron hinge
镀黄铜抽心铁方铰链
brass-plated iron square hinge
镀黄铜平头软钢机器螺丝
brass-plated mild steel countersunk head machine screw
镀黄铜平头软钢木螺丝
brass-plated mild steel countersunk head wood screw
镀黄铜铁窗钩
brass-plated iron hooks and eye
镀黄铜铁锁牌
brass-plated iron hasp and staple
镀黄铜圆头软钢机器螺丝
brass-plated mild steel round head machine screw
镀黄铜圆头软钢木螺丝
brass-plated mild steel round bead wood screw
热扩散镀黄铜
brass plating with thermal diffusion
弱酸性乙酸铜镀铜液
weak acid copper acetate bath