Refractory similar structural materials (other types) used in foundry industry (k�� no. 2874 / n3.10t� august 31, 2010 according to tk: 2619nkd dated august 2, 2010) (1 valley = 20 kgs) - ( 4410012) ceramic fiber
Main refractories include al2o3 and sio2 (1thung = 30kg) (according to ptpl results no. 930 / tb-k�4 dated june 26, 2019) - (4410002) () plasticity cast able refractorirs