Grauer & Weil India Ltd. Manufactures Gibonol Auto Black for Mild Steel and Iron Castings. Grauer & Weil India Ltd offers chemicals, engineering, and lubricants equipment in wide ranges. The Gibonol Auto Black for Mild Steel and Iron Castings is very good substitute for hot method of blackening / phosphating. Gibonol Auto Black is widely used in automobile industry, hand tool, cycle fasteners & hardware industries.
