Tech Steel Industries (TSI) is a SSI unit registered with District Industries Centre, Ernakulam, Kerala, for manufacturing Bolts, Nuts, Rivets and related engineering products. TSI has been in operations since 1971 and has our manufacturing facility located at Kuruppampady, near Perumbavoor in Ernakulam District. There are machinery for b... oth hot forging and cold forging operations. For cold forging operations, we have trimming machines and thread rollers of various types. For hot forging operations, we have furnaces and thread rollers of large sizes. are regular suppliers of bolts and nuts to various sections under Kerala State Electricity Board (KSEB). We also supply our products to SILK (Steel Industrials Kerala Limited), Ottapalam and Traco cables. However, a major part of our customers remain to be private buyers in and arou+ More