Boom and counter boom of the crane 2.13 Trolleys for the movement of the load m 1 and counterweight m2. The trolley shown in Fig. 13, consists of a chassis or metal base and four wheels which are to move into two rails. The rails that belong to the boom are longer than those of the counter boom.
Water easily passes though this EZ-Dry polyurethane foam. * Outdoor furniture such as seat and back cushions and mattresses. * Boat or marine cushions, golf carts, pool, patio or grading cushions. * Can also be used under Phifertex material and for filtering or padding whatever is exposed to large amounts of water.
HD36 Foam - Regular Medium foam for regular use. HD36 Foam - R is suggested for seats, chairs, cushions, benches, and mattresses. Foam has a typical life of 7 years. (HD36-R foam is a 1.8 lb/ft3 density with a 35lb ILD) HD36 Foam - High Quality Medium foam for regular or heavy use. HD36 Foam - HQ is a high quality foam suggested for seats, chairs, cushions, benches, and mattresses. Foam has a typical life of 16 years. (HD36-HQ foam is a 2.8 lb/ft3 density with a 35lb ILD) Lux Foam - Regular Firm foam for regular use. Lux Foam - R is suggested for seats, chairs, cushions, benches, and mattresses. Foam has a typical life of 7 years. (Lux-R foam is a 1.8 lb/ft3 density with a 50lb ILD) Lux Foam - High Quality Firm foam for regular or heavy use. Lux Foam - HQ is a high quality foam suggested for seats, chairs, cushions, benches, and mattresses. Foam has a typical life of 16 years. (Lux-HQ foam is a 2.8 lb/ft3 density with a 50lb ILD)