मैनहोल, सीवर उपांग, manhole,water and waste water,

[@RakeshYadav-fv1xm]

Nice video sir

[@VKCLearningPoint]

Thanks

[@C1589r]

Very helpful sir

[@officialdileepbhai718]

A lot of thanks sir

[@VKCLearningPoint]

Thanks

[@C1589r]

Survey ka videos daliye sir please sir

[@Chaube2002]

Nice work sir

[@C1589r]

Sir pipe joint nhi banyi please 🙏

[@VKCLearningPoint]

Play list me hai.