In January 1st 2012, the Showa Tansan Co., Ltd officially changed its name into Showa Denko Gas Product Co., Ltd as one of the group member of Showa Denko Group.
editor：admin time：2012-05-20 click：
In January 1st 2012, the Showa Tansan Co., Ltd officially changed its name into Showa Denko Gas Product Co., Ltd as one of the group member of Showa Denko Group.
