Weight difference between splited and non splited body

Hi,

     I am facing weight issue for around 18 m long part. Part prepared using spline. when part is not splited the weight is 21.592 kg. when i split that part and measure all splited body weight the weight is coming 21.408 kg. around 100 gm difference is coming. Is any solution for this?

Please help..

Thanks.

Vishal

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