NATIONAL PORCELAIN CERATECH MANUFACTURING CO. Mfrs. Of Industrial & Technical Ceramics Of Different Grade Such As : Refractories, High Alumina & Steatite. Item Such As : Beads, Band Heater, Tube, Boat, Muffel, Tiles, Cuplock, Bobbin, Filter, Coated Balls, Rasching Ring, Saddle, Burner Block, Ffrrule