PPGI vs PPGL Coil: Key Differences, Cost, and How to Choose (2026 Guide)
JIANGSU, JIANGSU, CHINA, December 29, 2025 /EINPresswire.com/ -- When comparing PPGI vs PPGL, the main difference lies in the substrate. PPGI uses Galvanized Iron (Zinc coating), while PPGL uses Galvalume (55% Aluminum-Zinc coating). While …