Profile: Blue Valley Machine & Mfg. Co., Inc. provides heavy duty, long-lasting metalforming machinery and circle shears vital to the manufacturing of storage and shipping tanks for petroleum, chemicals, grain and a wide variety of solids and liquids. We specialize in tank heads. Our machines are used as an integral part in the manufacturing process of cylindrical, conical and oval shaped pieces that require precise forming of a perimeter flange, offset and/or radius.