."Gratton drain-unblocker" plumbers, councils, hospitality, hotels, motels, hospitals, retail outlets. Will not harm copper, emulsifies tree roots, fats, paper, materials,cleans out fatty sumps, (sold in cartons of 6 x 1 litre plastic containers or 2 x 5 litre). Most effective.
4. Stainless steel & aluminium cleaner. Applications: shower trays, stainless steel urinals, aluminium/stainless steel screens, boats, alloy wheels, cleaning before welding, marine hardware