[jhsunny2009]

thanks Jop.

usually I put round number on non-fitting component such as pipe, but this make iso overal dimension is odd. one of senior designer in my team thinks we have to keep the overall dimension even (say control station width) instead of pipe length even.

another one is what is the actual length in the fab? is the fab pipe length is exact same as pipe length in model,say pipe length is 2000mm.
in the fab and construction, people more concern overal dimension or each single component dimension?