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Features: 1) The external panels are made of common glassed steel (FRP), the internal panelsare made of color-coated steel, and PU (with the density of 402kg/m) is used asheat preservation materials 2) With the special high-pressure foaming equipment and mold, the internal andexternal panels are firmly stuck, thus greatly increasing the strength and overallperformance 3) The panels cooperate with each other via the concave and protruding slots andconnect to each other via high-density eccentric connectors, which making itunnecessary to install exposed bolts in the shelter 4) With a modular design for the wall panels, the shelter height can be changedfreely based on the standard panel level Specifications: 1) Heat conducting coefficient: ≤0.024W/m.k 2) Oxygen index: ≥30% 3) Environmental temperature: -50 70oC 4) 2 bottom load: ≥ 600kg/sqm 5) 2 top load: ≥ 100-250kg/sqm 6) Waterproof performance: no seepage in case of 30-minute drench in 6mm/min rain 7) Wind-resistant performance: ≥ 50m/s 8) Quakeproof performance: level 7 earthquake 9) Anticorrosion: excellent 10) Service life: 25 30 years 11) Applications: inside parks or neighborhood, or beside roads; seaside andriverside and in humid, acid or alkaline surroundings; outdoor or at high altitudes