1)Material: A) Front : aluminium alloy sheet coated with
fluoro-carbon resin (PVDF) , (Supplier:BEKCER ,PPG). B) Core:
nontox low density polyethylene C) Back: aluminium alloy sheet
coated with polyester resin painting D) Surface coating thickness:
*6μ±1μ in double coating or *2μ±1μ in three coating E) Aluminium
alloy: ***3 H*4 F) Sheet thickness: 0.3mm,0.4mm,0.5mm
