solar energy heat preservation pipe

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solar energy heat preservation pipe
Posting date : Feb 12, 2014
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Free Member Scince Sep 25, 2012
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40-
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safety,neither irritating to skin nor to harm health soft,scraped resistant, cold-resistant, inflaming retarding,waterproof Test item Unit Test method Actual number Tensile Mpa GB/T 528-1998 1.46 Elongation % GB/T 528-1998 240 After the hot air gets older (100*48h) / GB/T 3512-2001 / Elongation % / +14 Density kg/m3 GB/T 533-1991 (127-133 kg/m3) 130.8 25% compression degree of hardness Kpa SAEJ18 25mm/min 5% 50.8 Water-absorptivity % SAEJ18 0.63 Bears the ozone aging experiment / GB/T 7762-2003 O (50*10-8, stretch 20%,40*48h) / / / Test result ok The information about product-related for reference only,but not about parameters of finished products !

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