About Us

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With expertise built since our founding,
we bring every concept to completion.

Since our founding in 1968, we have pursued proposal-driven manufacturing, leveraging proven technical expertise and flexible proposal capabilities to work alongside our customers from the conceptual stage onward. From small precision parts to large-scale structures, we have addressed our customers’ challenges across diverse industries.
On the shop floor, our craftsmen bring years of experience and unwavering dedication to working with metal materials. Free from convention, we think through how best to bring each concept to life. This problem-solving capability is our pride.

The Four Strengths
of SEIKOH

4 STRENGTHS

Proposal Capabilities That Meet Customer Needs

STRENGTHS01

With deep expertise in a wide range of metals—including stainless steel, high-alloy, and aluminum—we provide optimal proposals by combining extensive inventory, a broad sourcing network, and technical expertise.Rather than simply supplying materials, our role is to design the best solution with application, operating environment, cost, and delivery in mind. As a steel coordinator, we support our customers from the very first material decisions needed to bring each concept to life.

Supporting You Through to Completion

STRENGTHS02

We have established an integrated system under one roof that spans from material supply to design, processing, and delivery. Instead of a fragmented approach, we leverage our internal and external networks to see each project through to the end. Our strength lies in thinking through how something can be realized, rather than simply saying it cannot be done. As our customers’ partner, we continue to support them from the conceptual stage through to completion.

Flexibility for Small and Specialized Projects

STRENGTHS03

We have the processing equipment and expertise to handle a wide range of projects, from small precision parts to large-scale structures. Beyond standard products and conventional processing, we flexibly handle special shapes, small-lot production, and difficult-to-machine materials. Free from convention, we think through how best to bring each concept to life. With expertise cultivated over the years, we turn diverse needs into tangible results.

A Proven Track Record of Trust and Reliability

STRENGTHS04

Over many years, we have built a strong track record and know-how across diverse industries. Those experiences have strengthened product quality and the precision of our proposals, helping us build trust as a reliable partner. The experience we have accumulated is one of our greatest assets. With proven capabilities, we continue to support our customers’ manufacturing.

End-to-End
Workflow

  1. STEP1

    Concept Sharing & Consultation

    We carefully listen to our customers’ applications, challenges, and concepts to define the best path toward a solution.

  2. STEP2

    Design & Proposal

    We turn concepts into reality through production drawings and structural planning, then propose the optimal plan for materials, processing, and delivery.

  3. STEP3

    Quotation & Order

    Based on the design and proposal, we provide a quotation and, upon approval, proceed with the order.

  4. STEP4

    Work Instructions & Internal Coordination

    Using our internal network, we quickly issue work instructions to our in-house factories and processing departments.

  5. STEP5

    Processing & Fabrication

    We perform a wide range of processing with high precision, including cutting, bending, welding, and machining.

  6. STEP6

    Inspection & Quality Control

    We inspect appearance, dimensions, and structural details to ensure high-quality products.

  7. STEP7

    Delivery

    We deliver completed products in optimal condition, ready for use.

  8. STEP8

    After Support

    We continue to provide support after delivery to ensure safe, long-term use.

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