Quzhou, No.1, Tianhu West Road, Qujiang District, Quzhou City, Zhejiang Province
Tel.:
E-mail: https://www.chinahdht.com/
Tangqi Town, Room 201, Building 23, No. 286, Tangkang Road, Tangqi Town, Yuhang District, Hangzhou City, Zhejiang Province, China
E-mail: https://www.tongjinsilk.com/
Szczecin, Olszynki Grochowskiej
https://www.hardpower.pl
Kraków, Zawiła 51a
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E-mail: http://www.hard.net.pl/kontakt/
Radom, Tarnobrzeska 16
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E-mail: http://www.hartmet.pl
Sosnowiec, Grenadierów 1
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E-mail: http://www.hartmet.sosnowiec.pl/