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Mr Biplab Roy Choudhuri的作品

Cover for Mr Biplab Roy Choudhuri · Drilling Rig Mechanical Equipment Sop: It Tells About the Drilling Equipment Procedure of Starting Up (Paperback Book) (2015)

Drilling Rig Mechanical Equipmen... (2015)

Mr Biplab Roy Choudhuri

Cover for Mr Biplab Roy Choudhuri · Safe Operating Practices (Paperback Book) (2015)

Safe Operating Practices (2015)

Mr Biplab Roy Choudhuri