Any use of the same general character as any of the above permitted uses, subject to such additional reasonable safeguards as the Zoning Hearing Board may determine, provided that in no case shall the following uses or any use substantially similar thereto be permitted: abattoir; bulk storage of explosives; fat rendering; dump or incineration or reduction of garbage (except by the county); leather processing; manufacture of asphalt, explosives, fertilizer, linoleum or rubber; petroleum refining; wood or wood pulp processing.