Facilities for the transporting and transfer of fuel and water, being part of a fuel and water treatment installation
Environmental Control ApparatusFlexible pipes not of metal; non-metal pipe couplings and joints; junctions not of metal for pipes for use in gas, water, and fuel distribution plants
Rubber GoodsRigid pipes not of metal; polyethylene pipes for use in gas, water, and fuel distribution plants
Nonmetallic Building Materials