Since 1915, Diamond Manufacturing Company has been North America`s leading & largest perforator. We are a highly versatile manufacture of custom perforated metals, plastics & other materials. Some of these products include expanded metal, perforated plates, perforated steel, perforated tubes, perforated aluminum & perforated sheets. With all our capabilities, we can offer quality customer service. Call or visit our website for details. We would love to serve you today!
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