批发公制细牙紧定,天津批发公制细牙紧定螺丝,DIN916细牙顶丝DIN912内六角螺丝,DIN913平端顶丝,DIN914{jd0}顶丝,DIN915柱端顶丝,DIN916凹端滚华顶丝,DIN933外六角螺丝,批发公制细牙紧定,天津批发公制细牙紧定螺丝,DIN916细牙顶丝DIN7991沉头内六角螺丝,ISO7380盘头内六角螺丝,ISO7379塞打螺丝,英美制内六角外六角,DIN7984薄头内六角螺丝。45H合金钢喉塞。不锈钢螺丝:DIN912内六角螺丝,DIN913平端顶丝,DIN914{jd0}顶丝,DIN916凹端顶丝,DIN933外六角螺丝,DIN7991沉头内六角螺丝,ISO7380盘头内六角螺丝,英美制内六角外六角,DIN7984薄头内六角螺丝。不锈钢喉塞。碳钢螺丝:美制2级5级外六角,美制螺母。DIN95,DIN9828级美制尼龙自锁螺母,DIN980全金属自锁螺母,DIN928四角焊接螺母,DIN929六角焊接螺母,DIN582吊环螺母,DIN580吊环螺丝,