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SIAM Hikifune News Chromium plated products by you in everywhere.

Katsumi Kunii
General Manager


We are sharing the knowledge of plating and metal, also, our internal event and some of useful topic to not only who is in Thailand but all over the world. In this time, we will invite you to world of chromium plating.


【Chromium Plating(Cr)】

Our factory has 2 of different chromium plating, Hexavalent chromium and Trivalent chromium. Our plating supports various business and industry.

Chromium Plating

What do you imagine to Chromium? There are lots of products which are done Chromium plating, ex. Iron for golf, automotive grill on front, faucet, etc… SIAM Hikifune has 2 types of chromium plating, trivalent and hexavalent. We’ll explain those chromium plating here.

Chromium, generally, is included in stainless steel, nickel also. Stainless steel has good hardness and anti-rust characteristic. It’s not too much to say that great characteristic comes from chromium. Even though hexavalent chromium solution is environmentally regulated, chromium plating as surface treatment is not harmful to environment neither human body since chromium plating on products is chromium as metal.

Chromium as metal, I mean chromium plating on product surface, is chromium (0). Either trivalent chrome or hexavalent chrome become chromium (0) as same metal when it is plated on material surface. Both chromium plating have above good characteristic. The difference is only how chromium solution become chromium as metal.

Chromium plating

I’ll make it easy to explain. To build a volleyball team, it is necessary to gather 6 players. 6 players will be a great team. But, the government regulated to gather 6 persons to a team because this is very dangerous to control.


Then, to build a team, it is acceptable to gather only 3 players for 6 positions. Despite a team still needs 6 players, they can’t make great team. The only thing that is better than before, is easing to control a team. The difference between hexavalent chromium and trivalent chromium is same as above example.

SIAM Hikifune sends on topics latest news, plating acknowledge, corporate event, etc… around the world. If you have interested in our company, please contact us or visit our factory in Thailand.

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KOA-SHA (THAILAND) (hereinafter referred to as the "Company" or "We"), in the variety of services provided by the Company (hereinafter referred to as the "Services"), established the following privacy policy (hereinafter referred to as the "Policy").

Definition of Personal Information

The term "Personal Information" as used in this Policy, means information about a living individual which can identify the specific individual, including name, date of birth, and other descriptions (including other information that can be easily matched to identify a specific individual).

Acquisition of Personal Information

We acquire personal information by legally fair means.

Use of Personal Information

The Company shall use personal information for the purpose of business as necessary within the scope of the following.

  • To deliver optimized information to the individual user of the Service.
  • To help improve the quality of the Service by statistical analysis.
  • In response to inquiry in regard to the Service.
  • To conduct questionnaires regarding the Service.
  • To send information regarding campaigns and new products by the Company.
  • Other purposes associated with the abovementioned purposes of use.
About cookies

The Company makes use of cookies on the Service website. In addition, cookies may be used in a portion of the advertising system. A cookie is a small amount of data regarding usage history that is sent to your browser from a website’s server and is stored on the user’s hard drive. If the user prefers the Company not to make use of cookies, the user can set their browser to reject cookies. However, if the cookies are rejected, there is a possibility that the use of the Service on the website will be affected.

Provision of Information to Third Parties

The Company will not provide personal information to any third party without obtaining prior consent by the individual concerned, except as required by applicable laws and regulations.

In addition, the Company may access personal information and disclose it to third parties in the following cases.

  • Under Prior Consent of the Individual User Concerned
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Management of Personal Information
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Request for Notification, Disclosure, Correction, Suspension of Use of Personal Information

In the case the Company receives request from the individual user regarding the disclosure, correction, addition, deletion, suspension of use, or erasure of personal information, stoppage of use by a third party or notification of use, after confirmation that the requester is the individual user, the Company will respond without delay in accordance with the Personal Data Protection Act.

Note that in the case that the request does not meet the requirements stipulated by the Personal Data Protection Act, or the reason to reject such request is permitted by the Personal Data Protection Act or other laws and regulations, the request may not be fulfilled.

In addition, there is no payment required or fees associated with the request for disclosure by the individual user. However, the cost of communication from the individual user to the Company, transportation expenses, and expenses associated with the preparation of materials for the purposes of individual identification will be the responsibility of the individual user.

Revision of Privacy Policy

The Company will review the operational status of the handling of personal information and make efforts for continuous improvement, and may change the Policy as necessary. After such changes to the Policy, the Policy will be published on the Company’s website.


Please address inquiries regarding the Company’s use of personal information to

Established October 01, 2021

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