MTZJ T-72 7.5B MTZJ T-72 8.2B MTZJ T-72 9.1B MTZJ T-77 15B MTZJ T-77 6.8B MTZJ T-77 7.5C MTZJ ZD T-77 30B MTZJ10A MTZJ10B MTZJ10C