Shandong Cleanwill Chemical Co.,Ltd. is located in Dongying, which is the central city on the Yellow River Delta in the north of Shandong province. Dongying is an open coastal city that has recently flourished economically and culturally. It is the intersection of the Around-the-Bohai-Sea Economic Zone and the Yellow River Economic Belt. It is also the base of China's second largest oilfield—Shengli Oilfield. A highly efficient transportation network is formed by the far-reaching highway...