VAT BLACK 8

Qingdao China Oil Co., Ltd is one of the key members of Petro-China Co., Ltd. which is an extra large enterprise in China, and is also a subsidiary of China National United Oil Co., Ltd. Taking "Credibility and Initiative" as enterprise culture, this company kept showing great stride in import鏉剎port trade and domestic trade, and got increasing benefit since its foundation. With improving inner management and quality service, this company has passed the certificate of ISO9001:2000 quality manage...