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You can see this video how to calculate horizontal rolling, vertical rolling, Double rolling
How to template band as per isometric drawing
How to calculate north and east coordination
How to find elbow center
How to find Pipe Sch as per isometric drawing
How to find lateral branch
How to calculate latterl branch and lateral back point
How to marking lateral branch
How to calculate saddle branch
How to marking saddle branch
How to profile marking saddle branch
How to marking dummy support
How to calculate dummy support
How to profile marking dummy support
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