1.Specially designed spiral section provides outstanding benefit of flexibility ... 3.We abandoned the previous welding process and adopted the integrated corrugated copper pipe. It greatly increases ...

Spiral duct bends from 80mm dia to 200mm dia are pressed, segmented spiral duct bends start at 224mm dia upwards. All spiral duct bends are half radius e.g. 100mm Bend = 50mm throat radius. Spiral ...