全部产品都有国际认可的产品质量保证书，优质的产品会让客户满意和放心。
All products are internationally recognized quality assurance of the products, high-quality products and customer satisfaction will be assured.
蓝宝石(BLUE SAPHIERE)是其中的上品，会提供一份国际承认的品质保证书。
The sapphire (BLUE SAPHIERE) is high-grade goods, will provide an international acknowledgment the quality written guarantee.
瑞丰五金电子制品之产品通过了一系列国际质保证书，保证向您提供一流品质的产品。
Ruifeng products hardware and electronic products through a series of international quality assurance certification, provide first-class quality products to you.
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