Flask, Thermos, Stainless Steel Vacuum Flask manufacturer / supplier in China, offering Hot Sale 16oz/20oz/24oz Stainless Steel Insulated Tumbler Outdoor Leakproof Coffee Cup with Straw, 2025 New Owala Insulated Stainless Steel Water Bottle with Straw, 32oz Owala-Termo Straw Insulated Tumbler for Outdoor Camping Sport and so on.