Chien Kun Chen

Fortress Industrial Co.,Ltd. The private company was founded in 2012 and is based in Changhua, Taiwan. is a manufacturer of security door closers and other door control products. The Taiwanese company's range of products includes certified cam action door closers, floor springs, and transom closers. Customers can contact Fortress for more information on their door control products to meet their fire safety needs.

Ziyong Hardware Products (Taicang) Co. Ltd. is a Chinese company that manufactures hardware products. The private company is based in Jiangsu Sheng, China.

Part of Taiwan Fu Hsing Industrial Co., Ltd., Formflex Metal Industrial (Changshu) Co. Ltd. engages in the production of door hardware, door locks, and door closers. The company is based in Changshu, China.

Fortress Industrial Co.,Ltd. The private company was founded in 2012 and is based in Changhua, Taiwan. is a manufacturer of security door closers and other door control products. The Taiwanese company's range of products includes certified cam action door closers, floor springs, and transom closers. Customers can contact Fortress for more information on their door control products to meet their fire safety needs.

Part of Taiwan Fu Hsing Industrial Co., Ltd., Formflex Metal Industrial (Changshu) Co. Ltd. engages in the production of door hardware, door locks, and door closers. The company is based in Changshu, China.

Ziyong Hardware Products (Taicang) Co. Ltd. is a Chinese company that manufactures hardware products. The private company is based in Jiangsu Sheng, China.

Fortress Industrial Co.,Ltd. The private company was founded in 2012 and is based in Changhua, Taiwan. is a manufacturer of security door closers and other door control products. The Taiwanese company's range of products includes certified cam action door closers, floor springs, and transom closers. Customers can contact Fortress for more information on their door control products to meet their fire safety needs.