Welcome to Spring Tehnik Mandiri. We are a company that established since 2013 engaged in industrial Baja, Spring Steel. We were in LTC Lt SB Blok A1 No 10-10A Jl Hayam Wuruk No 127. (Whatsapp 081298888850) Email : springtehnikmandiri@yahoo.co.id. Discover the variety of our best products (Plat Baja, Aneka Per, Per Baja, Stainless Shim, Per Dorongan Cool, Stainless Steel) with quality and the best price you can get.