You Searched for - is 11312 : part 1
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    IS 11312 : Part 1 : 1985     (Reaffirmed Year : 2022 )

    External Upset Drill Pipe Assemblies for Use in Water Well Drilling - Part 1 : Screwed on Joints Drill Pipe

    Technical Committee : MED 21
    Status : Active

    No. of Amendments : 1