Tube 2018 join the best：16-20 April 2019
2，The 18th China International Petroleum & Petrochemical Technology and Equipment Exhibition，March27-29, 2018 beijing China
Yanta Road Industrial Areas, Yanshan County, Cangzhou City, Hebei Province, China.
Room302.Unit3, building No.4, Zone6, Zifangyuan Block, Fengtai District, Beijing, P.R.China.
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