We can offer butterfly type of heavy hinges based on customer design or some national standards (such DIN, ASTM, GB ) .
the size up to 5"(130mm) and the thickness up to 0.12"(3mm) .
material: carbon steel or stainess steel
surfactreatmen: zinc plated or others.
It is widely used in some steel doors, windows and some other construction area.
Welcome to contact us for the details and quotation.