Inquiry (采购产品): cartrdge check valves I like to use your check valves in an oil spray nozzle. please quote for size 1/4 and 5/16 cracking pressure 20 psi. I like to also receive a test sample. **** Hidden Message ***** joe ahrens 23661 Company: joe ahrens inc E-mail: jahrens@jalubecentral.com **** Hidden Message ***** jahrens@jalubecentral.com
