supply of 1. double crystal probe of 4 mhz and dia 20 mm required for ultrasonic testing of lhb wheel disc (including connecting cable of two meter length bnc sockets). 2. double crystal probe of 4 mhz and dia 15 mm required for ultrasonic testing of lhb wheel disc (including connecting cable of two meter length bnc sockets). 3. low angle perspex wedge attachment of 17.5 degree suitable for 20mm dia. normal single crystal probe. 4. low angle perspex wedge of 10 degree angle with 2.5 mhz & 20mm dia single crystal normal probe. 5. perspex wedges attachment for normal single crystal probe angle 12.5 degrees with size 20mm dia.. 6. low angle perspex wedge attachment of 15 degree suitable for 20mm dia. normal single crystal probe. 7. normal probe 10mm dia 2.5 mhz.(including connecting cable of two meter length bnc sockets).1. double crystal probe of 4 mhz and dia 20 mm required for ultrasonic testing of lhb wheel disc (including connecting cable of two meter length bnc sockets). 2. double crystal probe of 4 mhz and dia 15 mm required for ultrasonic testing of lhb wheel disc (including connecting cable of two meter length bnc sockets). 3. low angle perspex wedge attachment of 17.5 degree suitable for 20mm dia. normal single crystal probe. 4. low angle perspex wedge of 10 degree angle with 2.5 mhz & 20mm dia single crystal normal probe. 5. perspex wedges attachment for normal single crystal probe angle 12.5 degrees with size 20mm dia.. 6. low angle perspex wedge attachment of 15 degree suitable for 20mm dia. normal single crystal probe. 7. normal probe 10mm dia 2.5 mhz.(including connecting cable of two meter length bnc sockets).,double crystal probe of 4 mhz and dia 20 mm required for ultrasonic testing of lhb wheel disc (includi ng connecting cable of two meter length bnc sockets). [ warranty period: 30 months after the date of delivery ] ] , double crystal probe of 4 mhz and dia 15 mm required for ultrasonic testing of lhb wheel disc (includi ng connecting cable of two