- Vancouver, British Columbia, Canada
- Jun 9th
CRC block with five chambers Acrylic Block with Five Chambers; marked CRC Chemical Rubber Co This is an acrylic block composed of two plates, 6" long x 2.5" wide x 0.5" thick. Both plates are machined to have five recesses so that when assembled, as in the photos, there are five chambers. Each chamber has two holes drilled and tapped to a 6-32 UNC thread.