... ,POSCO,JISCO,LISCO,KRUPP ISO 9001:2008CERTIFICATE YADA Stainless steel rod: Polished Square Stainless Steel BarStainless Steel Square/ Flat/ Round / Triangle / Hex Bar ... . 400 Series_410,416,420,420F,430,430F3. Size: square bar: 5*5~50*50mm (or requested by customer ... Application: Widely used for manufacturingSpring, Screw, Bolt & nut, Steel mesh/coveyer belt, Shaft pin, Needle, Nail, Rope, Earphone ...