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