still used today; this technology couples a GC to an IR, which detects compounds by applying IR. to the gas effluent. Recent improvements in the hyphenated technique, GC/IR, may provide a simple alternative or. supplemental approach to GC/MS for the identification of certain compounds.
Vans' classic shoe style is made out of canvas, and sometimes suedeor leather. The brand makes an effort to create environmentallysustainable footwear, and uses recycled materials wheneverpossible.
Brake shoes are the friction elements of a drum brake system. They're made out of steel that's curved in shape and coated with friction material on one side. Unlike brake pads, brake shoes can be re-manufactured or recycled for future use.