tolerances. evolution of foundry shell sand for today's foundry simple solutions that work - (issue , september ) the shell sand process or "croning" process was invented by dr. johannes croning in hamburg, germany in . this process is the oldest core and mold making technology that utilizes synthetic resins...
familiar as african teak iroku wood is highly sought by craftsman for its strength and durability. the pen is available in lighter or darker shade coated with rhodium to enhance the natural warm color and grain of the african teak. individually hand crafted the seawood pen features admiring colored resins...
limited edition rollerball pen is a superb example of the creative mix of extraordinary materials and unusual shapes that you'd expect from the innovators at momo design and delta. it is a fine italian writing instrument that features a large body constructed of bands of carbon fiber black and clear resins...