Juwanjia, one of the drafters of the Traceability Standard for Exocarpium Citri Grandis, participated in drafting the Traceability Standard for Exocarpium Citri Grandis, and constructed the industry group standard "Information Requirements for Exocarpium Citri Grandis Traceability", which played a very important role in seeking truth from products. It may play a good demonstration role for the authenticity of old oranges.

Tang Wanjia created industrial integration. From the very beginning, Tangwanjia's orange seedlings, planting, baking, processing and independent brands have formed an advantageous industrial chain with strict quality control and thoughtful service, which is deeply trusted by consumers.

Tang Wanjia has its own system, its own unique quality system and processing system from top to bottom. Has advanced processing technology, abandoned the traditional bad processing links, dry storage, direct cutting of dry goods, no water and no pollution. Therefore, exocarpium Citri Grandis retains its unique fragrance and original ecology.