Inquiry (采购产品): cheap strong telescope mech. I'm trying to develop a prototype. I need a variable length 1/2 in rod which adjusts in small increments such as with a threaded rod and matching sleeve. Sorry, I don't know the language of screws. **** Hidden Message ***** Martha Pierson 77079 Company: na E-mail: martha_pierson@hotmail.com **** Hidden Message ***** martha_pierson@hotmail.com
