We are a North American OEM that sells equipment using Tenneco urea injectors. We would like to buy samples of the products shown in the picture with the title "WG1034120001 2015 NEW HOT SALE TENNECO fuel injector nozzle for urea 131851e B444606527 0444043016 0444043009 612640130089". Please send any specifications and pricing for these urea injectors. Bob Stelzer CTO Safety Power Inc.