Boyin super sandwich soundproofing material

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Boyin super sandwich soundproofing material
Posting date : Oct 15, 2009
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87-
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Boyin Super Sandwich soundproofing material. (Components :Enhanced system Chun-plastic ; Aluminum; and sound-absorbing materials ) Appearance: no surface rupture, cracking Density: 1.45 g/cm3 ± 0.1g/cm3 Ash: 45% ± 10% Evaporation: ≤ 1.5% Tensile strength: ≥ 0.6 MPa Save: no bonding, damaged After the financial Appearance: no surface rupture, cracking Shear strength: ≥ 0.5 MPa Heat mobility: ≤ 10 mm (vertical and horizontal) Droop of: ≥ 10 mm without breaking down Low-temperature impact resistance: Sheet no peeling, no cracks ED pollution of the film: not rust Burning: ≤ 80 mm / min

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