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BS 4841-4:2006

Действует
Rigid polyurethane (PUR) and polyisocyanurate (PIR) products for building end-use applications, Specification for laminated insulation boards (roofboards) with auto-adhesively or separately bonded facings for use as roofboard thermal insulation under non-bituminous single-ply roofing membranes — 18 стр.