Weifang Luyang roof bitumen membrane is manufactured inside our 10,000 ㎡ factory with six advanced production lines, supplying SBS and APP modified bitumen roll sheets with PE‑film, fine‑sand and mineral‑granule surface selections. Every finished roll completes lab testing for low‑temperature flexibility, tensile‑elongation, lap‑seam strength and UV‑aging indicators. Our product holds ISO and CE certification and supports custom‑thickness and roll‑size specifications. We deliver sample assessment, torch‑application guidance and global shipment for more than 50,000 worldwide construction‑industry cooperative clients.