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方形风管制作应用实例 Application in duct making
1、 压筋 Grooving
2、 共板法兰 TDF Flange
3、 "C"型插条连接 "C"Locking Seam
4、 单、双骨拼接 Single and Double hem locknection
5、 插接法兰 TDC flang 
6、 勾码Clip
7、 东洋骨、单骨角接 Pittsburgh Lock Single lock
8、 按扣骨拼接 Snap lock
9、 弯头 Elbow Lock
10、S骨拼接 " "Locking seam
11、TDC角码 TDC corner
12、角码连接 Corner conneting

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jiangyin Head Factory
Tel: 86-510-86065300     Fax: 86-510-86065200     Address: No.9 Xiangdun Road Huashi Town Jiangyin City Jiangsu Province China
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