Buying used Siemens SDH modules

We need used/refurbished Siemens SDH module Part Numbers

S/NO SDH MODULES(SIEMENS) SDH MODULES PART NO
1=OI-622 Module SA2024-D3512-B302-3 Qty 5 Condition Refurb

2= E I 155 Module S42024-D3506-C102 Qty 3 Condition Refurb
Contact Steve Christensen steve@2keane.com if you can help www.excesswireless.com