Add:JiangQiao Town, Jiading District, Shanghai, China
In order to reduce the number of cable tray roll forming machine procedure tests, roll forming raw materials can be grouped in the first place so as to see how downspout roll forming machine works. This is because the approval of one cable tray roll forming machine material can be applied to the whole material group as well as other sub-group that contains a material during the cable tray roll forming machine procedure test. In addition, within each group as well as sub-group, cable tray roll forming machine admits a sub-group with a lower index so that a cable tray roll forming machine test joint of cast steel admits roll forming of steels from lower quality level groups.
The range of cable tray roll forming machine qualification also concerns the amount of supplied heat in case of hardness requirements so that the lower cable tray roll forming machine qualification range is fifteen percent lower in case of impact related requirements. The qualification of cable tray roll forming machine procedure for cast irons is based on a prequalified manufacturer or their authorized representative and a test roll forming product is produced separately or sampled from the production line.