🏭 Manufacturer & DetailsA construction-chemical supplier in Ahmedabad, Madhur Construction Chemicals, lists Johnberg Marble Grade Resin (branded Johnberg) — a 🧪 synthetic resin in liquid form, sold in 25 kg plastic cans with claimed 100% purity. It’s labelled as “marble grade resin,” but appears to be a resin used in industrial marble-resin treatments rather than a consumer polish amazon.in ... Continue