-5- The manufacturing, processing or packing of the Following food products; 4.. flour, grain and feed. The manufacturing or processing of the following textile products:, 4. aynthetic fibres. The manufacturing or processing of the following wood and paper products: i. building paper and board. 44. ground wood pulp. lumber and building materials. matches. millwork products. paper. plywood and veneer. — prefabricated structural wood products. shingles. wood preserving excluding manufacturing and processing fron raw materials. (£) The following metal processing operations: —, .i. casting, extruding, finishing, forging and rolling. 44. electric furnace reduction of ore and scrap. , 1ii. metal alloying. iv. metal refining. (g) The manufacturing or processing of the following .. fabricated metal products: 4. boilers and plates. 44. fabricated and structural metals. iii. pipe and tubing. , (h) The manufacturing of tie following machinery and transportation equipment or other products of Like character or kind: agricultural implements. ’ boats and ships. engines, turbines, pumps and compressors.. heavy machinery and equipment. motor vehicles. railroad rolling stock and equipinent.-. . . . . . 4 “