Sycwin Wires and Cables - Sycwin's Type TW Wires (sizes 2.00 mm2 to 8.00 mm2) come in a new and improved packaging. It is color coded per size for easy identification. Also,
Type TW Grounding Wire | Product Catalog | TVC
Can I use THHN for Tracer Wire? What is the Difference with TW/THW?
600-Volt Dual-Rated Type Tw/Thw Oxygen-Free Copper Conductor Heat-Resistant Thermoplastic Insulation Thw Cable - China Tw Wire, Thw Wire | Made-in-China.com