No. 18 Donghaizhong Road, Qingdao, Shandong, China

Hirays International Trading Co.,Ltd. is one of an integrated international trading company in China. Our main exporting products are SCR/Diode module, SCR, power capacitors, casting/forging products ...

No. 1689, Donghuan Road, Qingyun County

Shandong Qingyun Changxin Chemical Science-Tech Co., Ltd. is specialized in manufacturing 1-Methyl-2-pyrrolidinone (NMP) and gamma-butyrolactone (GBL) series. Located in Shandong Province, China, we e...