Guangxi Tong-Heng Bio-Tech. Co., Ltd established in 2016, and located in Yonghui Technology Park of Pingnan Industrial Park, Guigang City, Guangxi, China. With 5,200 square meters area, Tong-Heng focuses on researching and developing the food and hygiene industries. Our main business is producing and selling bird’s nest and disposable mask (non-medical). There are enough bird’s nest and disposable mask are on stock to shorten the shipment time for customers.Tong-Heng got the certificates of our products as bellowed, 1.  Disposable mask Test Report from authority inspection organization of China, and meet GB/T 32610-2016 standard. 2.  Food safety management system certificate, GB/T 22000-2006 ISO22000:2005 (Bubble pure bird’s nest, pure bird’s nest and bird’s nest drink). 3.  Other rewards, such as China Well-Known Brand, China 3.15 honest enterprise and so on.With about 70 professional staffs in different workshops, Tong-Heng has the ability to control the products to meet the national standard and develop the quality to higher level. In mask works shop, Adult disposable mask and Children disposable mask are available due to Tong-Heng mask producing machines are very stable, and 300,000 masks would be produced every day. Meanwhile, bird’s nest would be processed in Food workshop.