Gem Bids For Custom Bid For Services - Hot Tapping And Line Stop Services For Single Line Stop Operation As Per Detailed Scope Of Work Custom Bid For Services - Double Line Stop Operation For Tandem Arrangement As Per Detailed Scope Of Work Custom Bid For Services - Pipeline Hydrotesting As Per Detailed Scope Of Work Custom Bid For Services - Pipeline Cut And Replacement Work Using Cold Cutting Machine As Per Detailed Scope Of Work Custom Bid For Services - 2 Inch Hot Tapping For Vent Arrangement At Top Of Pipeline As Per Detailed Scope Of Work Custom Bid For Services - 2 Inch Hot Tapping For Drain Arrangement At Bottom Of Pipelineas Per Detailed Scope Of Work