Name:
Double wall casing
Casing joints and pipes for pile protection of collapsing. Casing joints are composed of one male half joint and one female joint welded at each end of casing pipe for easy pipe connection. Joints coupling supplied with conical screw type for single and double wall casing.
2:product specification:
single or double coating typeDouble wall casing 750/670mm 2m
Size:
double Casing 750/670mm 4m
those tools are used to protect hole against cover by soil while piling work.
3,40mm thickness 50mmthickess