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Certification

Certification

CERTIFICATION

We provide trust through verified technology and official certifications.

Construction Business License

Construction Business License

Landscape construction registration

Garden Block Design Registration

Garden Block Design Registration

Design patent

Garden Block Patent Certificate

Garden Block Patent Certificate

Utility model patent

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Changjowon Co., Ltd.

Rather than decorating nature,
we design so nature permeates.

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Contact

TEL: +82-31-341-3006

FAX: +82-31-629-5463

Email: changjowon@naver.com

Hours: Mon-Fri 08:00 ~ 17:00

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© 2026 Changjowon Co., Ltd. All rights reserved.

Business Reg: 138-81-36758 | CEO: Park Chang-il, Kim Su-cheon

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