Thick-walled square tube according to the production process: hot-rolled seamless square tube, cold drawn seamless square tube, seamless square tube extrusion, welding square tube.
Where welding square tube is divided into:
(a) According to the process - arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube, etc. (b) According to the welding seam - straight seam welding square tube, spiral welding Square tube
Where welding square tube is divided into:
(a) According to the process - arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube, etc. (b) According to the welding seam - straight seam welding square tube, spiral welding Square tube
Framed Gas Fireplace,Gas Fireplace Firebox,Smart Gas Fireplace,Customized Gas Fireplace
JINAN LODOR CNC EQUIPMENT CO.,LTD , https://www.zgfireplace.com