Who is Steel City?

D.R. INDUSTRIAL Co., Ltd. was established in 1992 which has been producing accessories & fittings for electrical conduit products under the brand “Steel City” in Thailand.
The brand has been recognized widely by its customers, investors and suppliers as high-quality productivity, due to the company’s excellence manufacturing performances. Steel City has been serving the needs of society and also taken part in every people’s life bringing the power of electricity to their households, manufactories, structural sites and national projects construction part such as Suvarnabhumi Airport, Bangkok Mass Transit System (BTS Skytrain) and Mass Rapid Transit Authority of Thailand (MRT Subway).

“Why choose us?”

Steel City has been successfully driven expanding the sales and markets nationwide and oversea over decades that grown constantly and become one of the successful brands for the industry.
Steel City has gained reputation and acknowledgement among customers with the experiences, qualified and certified products as well as the services we provide to every customer assuring the right choice for products that will meet the entire satisfactory of individual and business achievement.


SAFETY IS OUR PRIORITY. Steel City focuses on improving safety and durability to our customers. As a leading of accessories and fittings for electrical conduit company, which allows our customers to fully trust in our products and services.


  • Fittings & Accessories for EMT, IMC, RSC Conduit
  • Manufacturing for Cast Iron, Aluminium, Copper, Brass
  • Manufacturing for Aluminium & Zinc Die – Casting