Weifang Luyang bathroom waterproofing membrane is manufactured inside our 10,000 ㎡ factory with six advanced production lines, supplying fleece‑backed polymer‑based indoor‑specialized sheets in multiple thickness grades for residential and commercial wet‑zone scenarios. Every finished roll completes lab testing for tile‑adhesive‑compatibility, tear‑resistance, crack‑bridging and water‑impermeability indicators. Our product holds ISO and CE certification and supports custom‑roll‑width specifications. We deliver sample assessment, wet‑zone laying guidance and global shipment for more than 50,000 worldwide construction‑industry cooperative clients.