Construction materials made of metal, namely, metal pipes for use as pipe lines in the oil, gas, and water industry; steel pipes for use offshore as tubulars, cans, legs, piles, bracings, conductors, risers and tethers; steel pipes for use in the construction industry for bridges, stadiums, and high-rises; steel pipes for use in steel structures under water as piles, dolphins, and anchor piles; metal machinery pipes for use in the paper industry as felt rolls, wire rolls, press rolls, dryers,...

PHYSICAL TRAINING DEVICES ADAPTED TO BE GRIPPED OR BUCKLED ON AND TO BE OPERATED BY ARMS OR LEGS