Weifang Luyang membran waterproofing solutions are manufactured inside our 10,000 ㎡ factory with six advanced production lines, supplying bitumen, polymer and composite roll‑sheet series in multiple thickness grades. Every finished roll completes lab testing for tensile‑strength, hydrostatic‑resistance, lap‑seam stability and aging‑resistance indicators. Our product holds ISO and CE certification and supports custom‑size specifications. We deliver sample assessment, on‑site laying guidance and global shipment for more than 50,000 worldwide construction‑industry cooperative clients.