The improved posture and abdominal tone might contribute to reducing back pain, and many years ago there were indeed studies which offered evidence in support. Unfortunately, insurance does not cover tummy tuck, even if back pain is involved.
How is National Re Construction abbreviated? NRC stands for National Re Construction. NRC is defined as National Re Construction somewhat frequently.
Other abbreviations used for this type of contract is LSTK for Lump Sum Turn Key, and some times also EPCC which is short for Engineering, Procurement, Construction and Commissioning. Use of EPC is common e.g. by FIDIC and most Persian Gulf Countries. Use of LSTK is common in Kingdom of Saudi Arabia.