1. supplementary products for foundry production other than interconnecting compounds used in the manufacture of foundry molds or casting rods: ceramic glue per crogiolo-1, ecosal 125-200 kg, foundry deg eco-1 / 250-280kg, ecosal 112 -200kg., crio eco 2-500kg, plastcote 3065-6kg, plastcote 3030-6kg,