Inquiry (采购产品): Tube Request This request is for two 15” steel tubes, with additional request and instructions for drilled holes at the end of each tube. Tube request: For the first tube, O.D. of 3-1/2” with a wall thickness of .050” and t304 alloy. Tube dimensions, including roundness, must be held within .005” throughout its entire length. Do not use low quality tubing. The second tube, Length 15”, O.D. of 3.31” with wall thickness between .040 - .063”. Drilled hole request: Drill eight (8) 1/4” holes, spaced at 45 degree intervals, around the diameter of one end of the 3.5” O.D. tube. Locate the hole centers 11/32” from the tube edge. Deburr the holes after drilling. Repeat the procedure to drill eight (8) 1/4” holes at the same distance from the end of the 3.31” O.D. tube. Next drill 1/8” holes around the end of the 3.5” O.D. tube closest to the 1/4” holes. Locate the hole centers 3/32” from the tube edge, with hold centers spaced at 3/8” intervals around the entire diameter. Deburr the holes after drilling. Repeat the procedure to drill 1/8” holes around the entire diameter of the end of the 3.31” O.D. tube. Deburr the holes after drilling. Thoroughly clean all oil residue from both electrodes using a soft clean cloth, and MEK or acetone as a cleaning solvent. **** Hidden Message ***** Darrell Irwin 78259 USA Company: Irwin R&D Phone: 2104870610 E-mail: darrellirwinswt@yahoo.com **** Hidden Message ***** darrellirwinswt@yahoo.com
