Qinhuangdao Good-China International Trade Co.,Ltd is a company dedicated to supplying magnetic cores to all over the world, Our products include silicon cores, amorphous and nanocrystaline cores,nano powder cores, ferrite cores, permalloy cores etc.

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QINHUANGDAO TONGYANG INTERNATIOANL TRADE CO., LTD TEL:86 335 5941865 FAX:86 335 3081771 QQ:1273181983 Cell:18630305832 E-mail:13784528398@VIP.163.COM