73577672
Jan 13, 1986
MANUFACTURE OF CYLINDER HEAD AND MANIFOLD GASKETS INCLUDING A PERFORATED STEEL CORE SANDWICHED BETWEEN TWO SHEETS OF SPECIALLY COMPOUNDED RUBBER ASBESTOS, AND THEN ROLLED UNDER TONS OF PRESSURE TO LOCK THE SHEETS TOGETHER, WITH DIE-CUT STEEL FLANGES MATED THERETO
Rubber Goods