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Why Can We Always Ensure Excellent Quality

Quality Control

Beijing Deyi Diamond Products Co., Ltd.

Strick quality test control system. We pay attention to the quality of both raw material and finished products.

Our quality testing includes diamond grit testing, matrix tolerance testing, hardness testing, appearance testing, etc.

Beijing Deyi Diamond Products Co., Ltd.

We buy large quantity of various masonry for testing diamond tools. Deyi has a higher standard about products' quality, we will test products as real usage scenario before delivery.

Certification

Beijing Deyi Diamond Products Co., Ltd. Certifications
Standard: CE
Number: TST202108Q3098-ISC
Issue Date: 2021-08-10
Scope/Range: Diamond Drill Bit
Issued By: TST Testing Technology Co.,Ltd
Beijing Deyi Diamond Products Co., Ltd. Certifications
Standard: CE
Number: TST202108Q3099-ISC
Issue Date: 2021-08-10
Scope/Range: Diamond Saw Blade
Issued By: TST Testing Technology Co.,Ltd
Beijing Deyi Diamond Products Co., Ltd. Certifications
Standard: ISO9001:2015
Number: 19821QH2127R0S
Issue Date: 2021-08-18
Expiry Date: 2024-08-17
Scope/Range: Diamond Tools
Issued By: Beijing Xinjiyuan Certification Co., Ltd
Beijing Deyi Diamond Products Co., Ltd. Certifications
Standard: Patent Certificate
Number: ZL201821650280.0
Issue Date: 2019-06-11
Scope/Range: BRAZED SAW BLADE
Issued By: China National Intellectual Property Administration
Beijing Deyi Diamond Products Co., Ltd. Certifications
Standard: Patent Certificate
Number: ZL201821650298.0
Issue Date: 2019-06-11
Scope/Range: SAW BLADE
Issued By: China National Intellectual Property Administration
Beijing Deyi Diamond Products Co., Ltd. Certifications
Standard: CE
Number: TST202108Q3098-ISC
Issue Date: 2021-08-10
Scope/Range: Diamond Drill Bit
Issued By: TST Testing Technology Co.,Ltd
Beijing Deyi Diamond Products Co., Ltd. Certifications
Standard: CE
Number: TST202108Q3099-ISC
Issue Date: 2021-08-10
Scope/Range: Diamond Saw Blade
Issued By: TST Testing Technology Co.,Ltd
Beijing Deyi Diamond Products Co., Ltd. Certifications
Standard: ISO9001:2015
Number: 19821QH2127R0S
Issue Date: 2021-08-18
Expiry Date: 2024-08-17
Scope/Range: Diamond Tools
Issued By: Beijing Xinjiyuan Certification Co., Ltd
Beijing Deyi Diamond Products Co., Ltd. Certifications
Standard: Patent Certificate
Number: ZL201821650280.0
Issue Date: 2019-06-11
Scope/Range: BRAZED SAW BLADE
Issued By: China National Intellectual Property Administration
Beijing Deyi Diamond Products Co., Ltd. Certifications
Standard: Patent Certificate
Number: ZL201821650298.0
Issue Date: 2019-06-11
Scope/Range: SAW BLADE
Issued By: China National Intellectual Property Administration
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