Cost-effective construction customizable pre-engineered buildings digital twin eco-friendly PEB factory shed Factory shed construction green buildings Indian construction industrial construction industrial construction India Industrial shed industrial shed construction industrial shed cost Industrial shed manufacturer Metal Tree Metal Tree PEB solutions Modular construction modular steel buildings PEB advantages Peb building manufacturer PEB company PEB construction PEB cost analysis PEB Industrial Shed PEB manufacturers PEB manufacturers in India PEB shed cost PEB structure manufacturer PEB structures PEB trends 2025 PEB warehouse design pre-engineered building Pre-engineered buildings Pre-engineered building supplier Pre-engineered metal buildings Pre-engineered steel buildings Pre-engineered steel buildings manufacturer prefab buildings prefabricated steel buildings Prefabricated warehouse Prefab structures smart building technology smart construction steel building India steel building solutions