We're looking for a professional factory who can produce for us round carbon steel link chain. The diameter of the link is 12mm. Other specifications:Hardness: 65HRC ?5%, depth 0.3mmPull strength: >;70kNCut resistance: >;80kN (EN 12320)Zinc plating: 70 micron ?10%Suitable factories are invited to mail us full company profile for our evaluation. Our qty. is >;10 ton/orderCountry:Netherlands