Vacuum Flask, Sports Water Bottle, Thermos Bottle manufacturer / supplier in China, offering 350ml 500ml Vacuum Insulated Straight Stainless Steel Tumbler with BPA Free PP Flip-up Lid, Wholesale 12oz 16oz 304 Double Wall Stainless Steel Straight Drinking Cup Water Bottle, Custom 12oz 16oz Stainless Steel Vacuum Insulated Tumbler Travel Coffee Mug and so on.