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Rail steel is usually used for railway fixed on the sleeper, sleeper for ballast. It is fastened by rail support, fastener, rail press, track splint, elastic bar, railway spike and other railway accessories. The bottom of the track is the track bed, which provides elasticity and drainage function for the track. Rails can also be laid on bases made of concrete, or even embedded in concrete. In order to withstand the pressure, impact load and friction of train operation, it requires sufficient strength and certain toughness. Quality requirements are strict, in addition to the guarantee of its chemical composition, but also require the inspection of mechanical properties, drop weight test and acid leaching of low-power tissue.
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Glass fiber reinforced plastic (FRP) grating, also known as FRP grating, is a plate-shaped material with many spaces that is made of glass fiber as a reinforcing material and unsaturated polyester resin as a matrix. It is compounded through special processing. Fiberglass grating can be used as structural materials for floors, trench covers, platforms, ship decks, stairs, planks, etc. in corrosive environments. It has the characteristics of corrosion resistance and flame retardancy, non-magnetic insulation, bright colors, and a variety of styles to choose from.
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Steel grating is also called steel grating. The grating is a steel product made of flat steel arranged crosswise with horizontal bars at certain intervals and welded into a square grid in the middle. It is mainly used to make ditch covers. , steel structure platform plates, steel ladder treads, etc. The cross bars are generally made of twisted square steel.
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Rebar is the common name of hot rolled ribbed steel bar; According to the purpose of the rebar is classified into ordinary reinforcement and concrete reinforcement. According to the appearance, it is divided into belt reinforcement and light round reinforcement; Ribbed bars usually have or do not have longitudinal ribs.
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DIN 536 I-Beam also known as Universal Beam, is a section of the I-shaped strip of steel. I - beams are divided into ordinary I - beams and light I - beams. It is a section steel with an I-shape.
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JIS 1103-91 I-Beam also known as Universal Beam, is a section of the I-shaped strip of steel. I - beams are divided into ordinary I - beams and light I - beams. It is a section steel with an I-shape.
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