cangzhou yulong steel co.,ltd   Shan XI yulong chemucal Co.,Ltd.   shijiazhuang fenghua pharmaceutical chemical technology Co.,Ltd   HeZe FengHuang Flavors And Fragrances Co.,Ltd   Hangzhou Xinyulong Chemicals Co., Ltd.   SHANXI JINFENGHUAYE CHEMICALS CO.,LTD   Shanxi Jinfenghuaya Chemicals Co., Ltd   Tianjin keqiangdafenghua gongyou co.,ltd   TJPFTZ KangYuLong International Trade Co.,Ltd.   YulongChemical Co., Ltd.   pengfenghua   Ningbo Yulong Industry & Commerce Corp., LTD.   huairen yulong chem   Fenghua Yuron Chemical Industrial Material Co,.LTD.   Fenghua Keli Chemical Co., Ltd.   Fenghua Chenghai Powder Coating Factory   Fenghua Yuron Chemical Industry Material Co., Ltd   Dingtao Yulong Fine Biotechnology Co., Ltd.   Zhejiang Yulong Chemical Co., Ltd.   Yancheng Fenghua Chemical Co., Ltd.