... Ad-Mart Co., Ltd. (China) (Chungkong for short) is one of the most professional and biggest ad-supplies providers in China ... . Our products cover tens of series with thousands of sorts, involving Chungkong, OK, McKAL, HUACAI, KOMEIL ... all over the world. Chungkong continuously takes the company principles of Credit and Professional, improves the service and operation, and ...