Qinhuangdao Yizhonglong Fine Chemical Co., Ltd., is a China based proessional manufacturer and exporter of chemical. We have advantageous geographic location in Qinhuangdao, Hebei, the middle east of China. Our main products include Rubber Chemical, Pigment/Dyestuff, Acid and others. We have a professional team with years of experience in chemical. You are welcome to consult us when you have any question at any time. We will give you our best answer as soon as possible.