Gmr Enterprises is based in India and lists copper slag, phosphogypsum, gypsum stones and gypsum powder on Global Trade Plaza. The copper slag is described as a low-cost expendable abrasive with low silica content, available in various sizes for open blast cleaning. Phosphogypsum is offered as a by-product of the fertilizer industry, free from unwanted materials, and noted for use in building materials such as portland cement, non-shrinking cement, hydraulic binder, mineraliser and fiber boards. Gypsum stones are supplied in solid form, packed in bags, with a stone size of 0 mm to 50 mm and purity of 90 to 95 %. Gypsum powder is also listed alongside ceiling gypsum plaster. Buyers can send an enquiry through Global Trade Plaza.