Here I make the logo you want in your brief, I slightly improve your logo from the old one. as you want, such as sustainability, durability and reliability. I put these elements in my logo. This logo is very suitable for use in the next 50-70 years.
I use a fold to make it stronger on the logo and as a sign that your construction is very strong. This logo is very reliable, a logo that is easy to remember for everyone. the logo can be applied anywhere.
I use the TW CEN MT font to make it look strong.