we are certified to ISO 9001-Weifang TongRun Chemical Co.,ltd.

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Office: The Coastal Economic
Development zone,Changyi, Weifang 261300, Shandong
Province, China
Tel: 0086-536-7118957
Fax: 0086-536-7128927
Mobile:15053619939
E-mail:trun@wftrun.com

we are certified to ISO 9001

Date：2011-11-11 Source：Weifang TongRun Chemical Co.,ltd.

Our production line passed the ISO9001 authentication.