Round Production Company Ltd is a Hong Kong based professional one-stop stage services provider. Pioneer area included: retails of professional tools, stage engineering, stage and event management services.

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一合製作由一群熱心的舞台工作者所組成，提供專業的舞台工具及用品，並發展一站式服務，為顧客節省更多時間。業務包括舞台用品銷售、舞台管理服務以及小型舞台工程。