Heat Shrink Tubing and Sleeves Market Size & Forecasts 2026-2035, By Segments (Flammability, Wall Thickness, Material, Shrink Ratio, Application), Growth Opportunities, Innovation Landscape, Regulatory Shifts, Strategic Regional Insights (U.S., Japan, China, South Korea, UK, Germany, France), and Competitive Dynamics (3M, TE Connectivity, HellermannTyton, Alpha Wire, Sumitomo Electric)