Fabrication WorksStructure Fabrication Works.Piping Fabrication and Erection Specification.This specification covers the minimum basic requirements for various aspects of the above ground piping and in trench piping for the industrial plants as follow: a) Shop and filed fabrication and erection of piping.b) Installation of in-line instrument items like orifice flanges, control valves, Rota meters, safety valves, etc.c) Installation of items like line mounted filters, ejectors sample cooler, etc.d) Installation of expansion joints.u0r4evvuvl|00010371|bobsco_db|Services|Description