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BS

PDF Standards BS 4432-3:1975

Methods for determining optical properties of pulp, paper and board. Determination of opacity (paper backing) of paper and board by the diffuse reflectance method
standard by BSI Group, 08/29/1975

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BS

PDF Standards BS 4026-3:1969

Specification for rod and links for root machinery-Potato elevator diggers and main elevators on complete potato harvesters: metric units
standard by BSI Group, 12/31/1969

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