GEM-DUO, .LTD.

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The NO.1 fasteners manufacturer

Good morning Sir, How are you? It is pleasure to contact you ！ Please allow me to introduce myself and Gem-Duo Co. I am Jonathan, the sales representative of Gem-Duo Co., Ltd.which is the subsidiary of Gem-Year Group, the #1 fasteners manufacturer worldwide in terms of quantity delivered. We are located in Shandong Province , China with annual capacity up to 200, 000 tons. We are capable of providing various types of fasteners, especially DIN912, 931, 933 & 934. If you have any needs , please do not hesitate to contact me, thank you very much. Best regards, Jonathan