contained inside.3. With regard to types of packing and markings, please consult us. FAQ:1. What are ETP and TFS's parameters inspected?A. Mechanical Properties - Hardness (temper grade).B. Dimensional Accuracy - Thickness, Width and Cut-length.C. Lubrication - Oil film.D. Corrosion Resistant Property - Tin coating (for Tinplate), metllic chromium and chromium in Cr-oxide (for TFS), Passivation film weight, Alloy-tin Couple (for required), Iron solution value (for required), Tin grain size (for