The recommended processing technique for plastic pipes manufacturing.

On a average work day more than work place firs are reorted

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan

Wiy doeres rere okhn a pump whon working betwon the same pressure range?