Quality Control

Accurate, reliable deliveries on the strength of rigorous quality control.

Component Analysis

We use X-ray fluorescence analyzers to inspect steel products that require rigorous examination.

Some of the special steel products we supply are dangerous. To mitigate the danger, we use X-ray fluorescence analyzers and positive material identification (PMI) to inspect steel products that require rigorous examination.
We always devote the utmost attention to delivering products of unfailing quality.

ISO Certification

We acquired ISO 9001 certification to prove that we satisfy the international standard for quality management.

To reliably deliver high-added-value products that meet our customers’ needs, we acquired ISO 9001 certification, proving that our quality management system satisfies the international standard. We aim for continuous improvement to provide the quality, timely deliveries, and services our customers demand.

ISO 9001:2015

  • Head Office
  • Hirakata Distribution Center
  • Kanto Office/Kanto Distribution Center
Certified operator
Yamashin Industry Co., Inc.
Head Office
1-19-5 Uemachi, Chuo-ku, Osaka 540-0005 Japan
Associated locations
Hirakata Distribution Center
2-25-18 Kasuga-nishimachi, Hirakata-shi, Osaka 573-0136 Japan

Kanto Office/Kanto Distribution Center
2-1-1 Inter-minami, Misato-shi, Saitama 341-0059 Japan
ISO 9001:2015
Certificate number
Date of certification
December 26, 2003
Certifying agency
Japan Quality Assurance Organization (JQA)
Certified activities
  1. Sourcing and sale of metal materials
  2. Manufacture of fabricated metal components for industrial equipment, OA equipment, and building construction
Quality policy
  1. We satisfy our customers’ needs.
  2. We continuously improve our quality control.
  3. We provide services that satisfy our customers.


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