According to the different shape and size of the products, the refractories are divided into:
● Standard type: 230mm x 114mm x 65mm;
No more than 4 scale, (size ratio) Max:Min<4:1;
● Profile: no more than 2 concave, (size ratio) Max:Min<6:1;
Or have a sharp angle of 50~70 degrees;
● Specific type: (size ratio) Max:Min<8:1;
A nook or not more than 4; or a 30~50 degree angle;
● Special products: crucibles, utensils, pipes and so on.