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Dongguan Standard Instrument Equipment Co., Ltd

Address:Room 101, Building 2, No. 6 Liyatang Industrial Road, Tangxia Town, Dongguan City, Guangdong Province, China
Tel:15017158952

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15017158952

橡皮擦耐磨试验机 酒精铅笔试验机 铅笔磨耗测试