HISTRONG is an experienced export-focused vinyl building material manufacturer, providing full B2B, OEM & ODM solutions for global distributors and engineering contractors. We supply two core product ranges: PVC soffit panels and soft PVC louvers. PVC soffit panels have V Slot, U Slot, Double/Triple/Four Column profiles plus matching installation accessories; soft PVC louvers cover standard sizes 150LS,170BS,210LS,260BS,280CV,300CC. Lab test data: water absorption below 0.08% (ASTM D570), flame retardancy reaches Euro Class B-s1,d0, dimensional thermal expansion ≤0.35% (EN 34), mold resistance Grade 0, UV aging test passes 1000-hour xenon lamp exposure with minor color shift. 

All products hold IAF, CNAS, RoHS, CE certifications, fully complying with EU, Middle East, Southeast Asia import standards. Low-water-absorption property lets panels perform steadily in humid outdoor eaves, balconies; modular installation greatly cuts labor cost. Browse www.histrongdeco.com, email sales@histrongdeco.com