Inquiry (采购产品): Prototype Tube Assembly Material: soft copper 5/8" dia. tubing with wall thickness of approximately .045". Formed into a coil approximately 40" long. The O.D. of the coil 3 3/4" dia. with a straight section of tubing passing back through the center of the coil. Any joints to be brazed or high temp. silver solder. The beginning and end of the tubing assembly to be on the same end. The pitch of coil to be approximately the O.D. of the tubing. The cross section for the entire length must be circular with mimimal distortion. This tube assembly would be used for a prototype unit so our immediate need is for only one (1) assembly. **** Hidden Message ***** Robert Zerfoss 29681 Company: FNZ Associates E-mail: rwzerfoss@charter.net **** Hidden Message ***** rwzerfoss@charter.net
