Manufacturer wholesale SUS304 stainless steel double-layer vacuum insulated cup, shaped like a wine bottle, with a stylish and elegant exterior. It has undergone electrolytic passivation treatment to form a dense protective layer on the inner surface, making it less prone to bacterial growth and scale buildup. The sealing ring is made of silicone, and it can keep drinks hot at 63 degrees for 12 hours and cold at 9 degrees for 6 hours.We welcome all customers to call for inquiries, and offer special discounts for large quantities!! (Customized LOGO available) Coupon 1.00 is valid for purchases over 500 yuan from 2020.09.22 to 2020.12.25