Rapido Trains 123009 HO Scale X31A Double Door Boxcar Shadow Keystone Pennsylvania PRR 6 Pack Soldering Tool Other uses include nitrogen fertilizers

Other uses include nitrogen fertilizers and the “acid” in car batteries

Mix resin and hardening agent in 2:1 ratio an let dry for 24 hours

body molding trim

Lighted number boards

Rapido Trains 123009 HO Scale X31A Double Door Boxcar Shadow Keystone Pennsylvania PRR 6 Pack Soldering Tool Other uses include nitrogen fertilizersRapido Trains 123009 HO Scale X31A Double Door Boxcar Shadow Keystone Pennsylvania PRR 6 Pack In 1934 the Pennsylvania Railroad started production of a new series of 40 boxcars the X31 series. These cars featured an unusual round roof appearance to provide maximum capacity within the then standard loading gauge. The most numerous group of these new boxcars was the X31A, produced in both single and double door variants. In total, the PRR produced 6700