xuelian, Tianjin, Tianjin, China

We are China PDM DRILLING TOOLS&＃039;S MANUFACTURE LTD &＃039;s export arm and also theleading supplier who is specialized in marketing all sizes of OCTG. Business Field:drill pipes, in...

We, Tianjin An Sheng Da Import & Export Co. Ltd are the trading company of engaging in tubular goods for oil field business in Tianjin, China, we would like to cooperate with you on the possib...

HongQi, Tianjin, China

We, Tianjin An Sheng Da Import & Export Co. Ltd are the trading company of engaging in tubular goods for oil field business in Tianjin, China, we would like to cooperate with you on the possib...