... voltage unstable environments. It’s our patented design prepared for export.Technical parameters:length:1000-5000mmInner diameter:200-3000mmJoint:plain ... order to give you the appropriate price,please tell me the following informations, thanks for your cooperation.1, the pipe length2 ... pipe need to add the steel cage?5, Now, do you have others machines?6, Operating environment7, Discharge port8,Daily ...