... ,PPGL,prime roof tile/roofing sheet/corrugated sheet/metal roofing,ETC Name:prime roof tile/roofing sheet/corrugated sheet/metal roofingBase material:PPGI,PPGL ... , billboard, timekeeper, typewriter, instrument panel, weight sensor, photographic equipment4)ISO CERTIFICATE5)PPGI PRODUCE PROCESS prime roof tile/roofing sheet/corrugated sheet/metal roofing