origin : china min order : sets we are glad to present our company as a leading exporter of testing machine. standards: astm d , gb/t , iso , jis... shanghai, china log in to view more information. not a member?...
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® glass is an e-cr glass in accordance with astm d and iso . this translates into important benefits for end-users over traditional e glass: longer service life, larger safety coefficients for the same design, and material savings. traditional e-glass includes boron and often contains added fluorides...