OEM = original equipment manufactor. This means if I want a air cleaner and I own a ford, I go to the dealership and they sell me the exact same piece that was on my car originaly. Chopper and hald layed is simple.
When you lay down fiberglass you can do it several ways. chopper guns shoot resin and chopped up fiberglass strands at a mold. This is very inconsistant for demension but can create amazing strenght and depth of glass in a short period of time.
Hand layed means that you buy woven fiberglass cloth, saturate it with resin, and then hand form it to the mold. This typically is done as the top most layer of a piece. The one that you can see, and then a chopper gun is used underneath this for extra thickness and regidity.
Hand layed glass is always the smoothest way to go about things, and most kit cars are handlayed into the mold first and then backfilled with a chopper gun.
you can also go to
www.fiberglast.com to learn more.
88 Mera GTS. (Sunnny Day Car)
~97 Thunderranch Riot (Drive like a maniac track car)
04 F140 Lariat. (Dump truck/People Mover)
600+ HP Shelly Valley Cobra (Enzo Who)
03 Vintage Speedster (Sold)