Stair lecture ! Parts of stair ! Riser ! Tread ! Line of nosing ! Stringer beam ! Pitch of stair 

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thanks for comment share vedio to All of your friends group and your social media page like facebook etc.

Thanks for comment ....share vedio to all your friends group and do support for channel

Comment karne ke liye dhanyvad video ko Jyada Se jyada share Karke Hamare Channel ka support Karenm

Thanks for comment.vedio share karke support Jrur kare

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@@narayanacoachingclasses544 okay sir

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Agar apko vedio axhi lgi to thanks na bole ....jitna ho ske apne friends group and Facebook jaise social media pr share .

Vedio KO share Jrur Kar Dena .........

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Vedio KO apne sabhi civil group m share kare

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thanks for comment share vedio to All of your friends group and your social media page like facebook etc.

Comment krne k liye dhanybad .....video ko apne friends group m share karke sahyog bhi kare @Narayanacoachingclasses

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Dhanybad .... .......its my duty ......

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@@narayanacoachingclasses544 already share kr diya sir👍

Thanks for comment .....agar is channel ki vedio apke liye helpful h tab..vedio ko apne friends group m Jrur share kare sath m apne social media page pr .....if it is possible ...for support to channel.

Thanks for comment .

Sir ye koi neta hai kya 😂😂😂

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Comment krne k liye dhanybad .....video ko apne friends group m share karke sahyog bhi kare @Narayanacoachingclasses

Building construction ke sare topics cover kra do detail me sizes ky ky hone chahiye etc thanks alot Sir

Thanks for comment ......vedio KO sabhi KO share kare

Ab lgatar aaegi vedio sabhi topic par

Thanks for comm

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Kya sir apka watsaap number mil skta hai

9675380602

@@narayanacoachingclasses544 thanks sir

Thanks for comment .....agar is channel ki vedio apke liye helpful h tab..vedio ko apne friends group m Jrur share kare and apne social media page pr .....if it is possible ...for support to channel.

Thanks for comment .....agar is channel ki vedio apke liye helpful h tab..vedio ko apne friends group m Jrur share kare and apne social media page pr .....if it is possible ...for support to channel.

Welcome dear.......share also to all your friends group

Thanks for comment ....share vedio to all your friends group and do support

Thanks for comment ...share video to all your friends group and support

Abhi thoda time lgega

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Sir Nepali hai china ka friend