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| ISO9000-China |
ISO9000-England |
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| Certification of Enterprises with Credit in Honoring the Contracts in the year of 2002 |
Certification of Enterprises with Credit in Honoring the Contracts in the year of 2003 |
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| Certification of Contract Credit Grade |
Gold Client of Bank |
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| Certification of Paying Tax with Credit in A Grade |
Certification of High Technique in the year of 2005 |
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| Certification for Export-oriented Enterprises with Foreign Investment |
Certification of Contract Credit Grade (China & England) |
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| Certification of Enterprises with Credit in Honoring the Contracts (China & England) |
Patent – Supply Air Grilles |
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| Patent – Location Connection Technique of Air Valve |
Patent – Linkage of Air Volume Adjustable Valve |
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| Patent – Jet Diffuser |
Patent – Ceiling Diffuser |
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| Patent – No Welding Air Volume Adjustable Valve |
Patent – Swirling Air Diffuser |
