Thank you so much Sir, of your very clear explanation and illustration. Much knowledge I learned from your TH-cam channel. Stay safe always and God bless…
Hello sir tanong ko lang po sana ano po ba talagang mas ok na orientation for channel purlins, opening upward gaya diyan po sa presentation niyo po or opening downward po? Thank you po in advance.
Thank you so much Sir, of your very clear explanation and illustration. Much knowledge I learned from your TH-cam channel. Stay safe always and God bless…
Hello sir tanong ko lang po sana ano po ba talagang mas ok na orientation for channel purlins, opening upward gaya diyan po sa presentation niyo po or opening downward po? Thank you po in advance.