Material | Steel Pre-galvanized |
Size | 1/2&3/4" K.O. |
Type | Drawn,with Raised Grouding Screw |
Standard | UL 514A |
Depth | 1-1/2" |
Thickness | 0.7mm - 1.6mm |
Usage | 4" Square (4S) Boxes Extension Rings are used to install lighting fixtures, switches, and receptacles in ceilings and walls, with both welded steel and drawn steel construction. |
Tel: +86-571-28909912
Mobile: +86-13968170580
E-mail: sales@prostar-ele.net
Whatsapp: 0086-13600529482
Office Address:
Unit 904 Huayuan Development Building No.639
Jianguo North Road Hangzhou Zhejiang China
