P - on behalf of the board (plate)
The original plate PC and plate -- aluminum (clad plate and clad sheet), such as A2024PC
BE ordinary grade extruded (bar)
BES special bar drawn (grade)
BD - grade drawn bar ordinary
BDS special bar drawn (grade)
W -- Ordinary grade drawn wire (ordinary grade drawn wire)
WS -- grade (special grade drawn wire drawing)
TE ordinary grade extruded (tube)
TES extruded tube special (grade)
TD - grade drawn tube ordinary
TDS drawn tube special (grade)
TW - grade welded tube ordinary
TWS special tube drawn (grade)
FD dies (forging)
FH - free forging (forging hand)
PB - bus plate (rolling)
SB - general bus shape (corner), extrusion
BY - electrode (wire)
WY - (rod), non melting electrode, and inert gas shielded welding.
