Binder includes 4" slant d-rings

Le modèle EL344R est parfait pour les étudiants en biologie

and they come in a convenient pack of 20

sold separately)

less turbulent gas flow

SCN Industrial Rail Chocks VariesBy:Default Binder includes 4" slant d-ringsThese rugged steel rail chocks provide an effective means of blocking railcars for safe loading and unloading. Steel points on chock heads bite into rail to prevent sliding. Standard finish in railroad maintenance yellow. Integral 7 1 2" x 9 1 2" sign reads "chock". Single rail chock for stoppage in one direction; double rail chock for stoppage in both directions (with rubber strap and hooks for greater tension). Choice of exposed (above ground) or