What gauss rating do I need for a magnetic rod - China Manufacturers, Factory, Suppliers

We depend on sturdy technical force and continually create sophisticated technologies to meet the demand of What gauss rating do I need for a magnetic rod, Sheet Metal Construction , Stainless Steel Sheet Fabrication , Digital Metal Detector , We have a strict and complete quality control system, which ensures that each product can meet quality requirements of customers. Besides, all of our products have been strictly inspected before shipment.