MRC:
A feature of the item of supply which must be specifically recorded when the reference number covers a range of items.ZZZY
Reference Number Differentiating Characteristics:
Sw/excitation unit part no 40-750, electromagnetic shutter part no 12-900, concave grating 1180 grooves part no 99-60-20-19, cylindrical quartz lens 250 mm part no 18-230, accessory bar part no 10-010, adjustable bilateral slit part no 12-000, filter assembly part no 16-830, cylinder quartz lens 67 mm part no 18-160, arc and spark stand part no 19-300, rf shielding tubing part no 19-312, exhaust system part no 19-510, voltage regulator part no 46-064, master film part no 22-950