Capacity: 220mlSize/weight: 4.8×6.2×21cm/135gCarton: 36×29×46cm/0.048m³QTY: 50pcsN.W./G.W.: 6.8/10.3kgs1. Core Concept and Technical FoundationsThe insulated stainless steel red wine mug reusable cup represents a convergence of thermal engineering, materials science, and modern beverage consumption habits. Unlike traditional glassware, which relies solely on ambient conditions to preserve flavor and temperature, insulated wine mugs apply double-wall vacuum insulation to actively reduce heat transfer through conduction, convection, and radiation.In a stemmed, green stainless steel wine tumbler...