Can Yingtong graphics card be guaranteed without invoice?

I can guarantee it. Yingtong is an independent brand of Shenzhen Yingtong Digital Technology Co., Ltd., which was founded in Shenzhen in 2000. The company is committed to the research, development, production and marketing of computer accessories and consumer electronic products. Yingtong graphics card can be guaranteed without invoice. Since its establishment, Shenzhen Yingtong Digital Technology Co., Ltd. has always been adhering to the business philosophy of "learning from others and spreading the world", persisting in the belief of building a national brand, persisting in independent innovation and striving for perfection.