About Tiancheng Group
JIANGSU TIANCHENG GROUP LIMITED
Yaoguan Town, Changzhou City, Jiangsu Province,China
+86-519-88387662
+86-519-85121683
steel_tube
steeltube.china
Tiancheng_Group
josen_dong
info@tiancheng.org
TIANCHENG STEEL TUBE Cold drawing workshop
link:http://www.youtube.com/watch?v=_7v5WOPRkus
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