Hello Phusit,
Thank you for the information.
I have to say that this is not an easy project.
First of all I have to say, that we do not have a system that is capable of checking for problems like (Constricted, Twist and Gap). For this we do not have a proper solution.
Secondly, The inner diameter of the tube can only be measured with our WALLMASTER system, if the inner tube is produced and we can measure the wall thickness and diameter before they wrap the steel wires around it.
But this need to be discussed with them if they can fit a system into the production line of the inner tube only.
Please discuss it with the customer and let me know.
If they want the measurement take place after the product is finished (as shown on picture) we do not have a feasible solution.
If there are questions feel free contacting me.
With my best regards
Silvio Piller