... ,GL,PPGI,PPGL,prime roof tile/roofing sheet/corrugated sheet/metal roofing,ETC Name:prime roof tile/roofing sheet/corrugated sheet/metal roofingBase material:PPGI,PPGL Thickness ... , photographic equipment4)ISO CERTIFICATE5)PPGI PRODUCE PROCESS prime roof tile/roofing sheet/corrugated sheet/metal roofing