Defective items, missing items, or items not described accurately. Please Contact for any other specific heavy machinery or scientific instrument related inquiries, (have a database full of market contacts with varying industrial machinery and components, and can most likely get whatever you need). Please Message for all other Inquires, THANK YOU & HAVE A GOOD DAY! IF THERE ARE ANY PROBLEMS WITH THE ITEM DO NOT TRY TO REPAIR AND INVESTIGATE.Please check with us about ITEM'S AVAILABILITY prior to ordering. ALL CLAIMS MUST BE REPORTED AND ACKNOWLEDGED WITHIN 72 HRS OF RECEIPT.