Grouping of high-polymeric materials on the basis of the effect of temperature on their mechanical behaviour; fundamentals, grouping, terms and definitions— 5 стр.
Grouping of high-polymeric materials on the basis of the effect of temperature on their mechanical behaviour; fundamentals, grouping, terms and definitions— 5 стр.
Sealing rings consisting of elastomers for joints in sewers and drains; circular of similar cross-sections, technical specifications for delivery, dimensioning— 10 стр.