74035775
Mar 7, 1990
Sep 26, 1995
covers for ladles and pits for heat treatment of ingots; fixing devices, hangers, nuts and bolts; all for use in furnaces, kilns and ovens, for use in the metallurgical industry
Metal Goodslinings of insulating material made of ceramic fibers for use in insulating heat vessels or parts thereof such as furnaces, kilns, ovens, ladles, doors, roofs, walls and covers
Rubber Goodsrefractory concrete, refractory cements, all for use in heat vessels and parts thereof, namely furnaces, kilns, ovens, ladles, doors, roofs, walls and covers
Nonmetallic Building Materialsconstruction, installation and maintenance of heat vessels, namely, furnaces, kilns and ovens for use in the metallurgical industry
Building Construction and Repaircustom design of heat vessels, namely, furnaces, kilns and ovens for use in the metallurgical industry
Computer and Scientific