PB-x a b c d e -f g h
x = Material
      1:CEM1
      2:CEM3
      3:FR-Glass fiber
      4:Aluminum
a=Categories
      1:Single Side
      2:Double Side
      3:Multi-layer board
b=Thickness
      1:1.0mm
      2:1.2mm
      3:1.6mm
      4:0.8mm
c=The composition of goods
      1:Semi-finished products
      2Finished goods
d=Our Internal Identification Use
e=0
f,g,h,=Serial No.