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LUEN JIN ENTERPRISE CO.,LTD.　　 No.17-21, Laiganliao, Jiali Dist, Tainan City 722. Taiwan (R.O.C) 　　　 TEL:886-6-7266800 　　　 FAX:886-6-7266558 ; 886-6-7266558　　 E-mail:sales_int@luenjin.com.tw

Diamond Steel Tube Enterprise Co., Ltd. 　　 Khai Quang Industrial Park, Vinh Yen City,Vinh Phuc Province, Vietnam 　　　 TEL:+84-211-3728100 　　　 FAX:+84-211-3728368 E-mail:sales_int@luenjin.com.tw

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