Cylinder block marking:
A - a new cylinder block;
B - cylinder block for aggregate replacement;
1 -class according to the diameter of the cylinder No. 1;
2 -class according to the diameter of the cylinder No. 2;
3 -class according to the diameter of the cylinder No. 3;
4 -class according to the diameter of the cylinder No. 4;
5 - bearing diameter class No. 1;
6 - bearing diameter class No. 2;
7 - bearing diameter class No. 3;
8 - bearing diameter class No. 4;
9 - bearing diameter class No. 5.