PEEK-沉头内六角螺丝
PEEK-沉头十字螺丝
PEEK-垫片
PEEK-螺母
PEEK-内六角紧定
PEEK-内六角螺丝
PEEK-外六角螺丝
PEEK-非标外六角螺丝
PI-沉头一字螺丝
PI-圆头十字螺丝