yes. According to the official website of Guancentennial aluminum, Guancentennial was registered by Suzhou Ranlin Trading Co., Ltd. in China Trademark Office on November 23rd, 218. According to the online inquiry of China Trademark, Guancentennial was registered on November 23, 218, and the exclusive right period was from August 28, 219 to August 27, 229. It belongs to the trademark of building materials industry.