MBC Knowledge-Based Western Spiral Company was established in 1989 with the aim of producing various types of steering spirals, automotive parts and assemblies. This industrial complex currently has two production sites in Kermanshah and Tehran provinces, and in line with the implementation of development plans, it has established and launched a third site called Arka Tejarat Atiyeh in 2017.

This industrial complex produces about 100 different types of products, of which 30 are related to various types of axial parts, gears and ball screw steering gears for agricultural machinery, and 70 types of automotive products, including the electric steering box set SP100

(Shahin-Aria) and SP200 (Saina, Quick, Atlas and Sahand Automatic), the hydraulic steering box set X100 (Pride), and X200 (Tiba-Saina-Quick-Atlas-Sahand), the mechanical steering box set X100 (Pride), the steering rack and joint set for SP200, X200, X100 and SP100 family vehicles, the steering rack for SP100, X200 and Dena Plus family vehicles, and the steering rack is produced and assembled from scratch for X200, X100 and SP100 vehicles. 80% of the steering rack and pinion assembly and 70% of the steering rack and pinion assembly used in the production sites of the Saipa Automotive Group are products of Marpich Bakhtar, and this company, as the largest private parts manufacturer in the west of the country, is the main supplier of steering box assemblies, suspension system components, and front end parts for all types of vehicles.

Currently, Marpich Bakhtar Company cooperates with the Saipa Automotive Group, Iran Khodro, and Tractor Sazi

.