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See Chinese contents: GB/T 17638-2017 GB/T 17638-2017: Geosynthetics -- Synthetic staple fibers needle punched nonwoven geotextiles
This Standard specifies the product classification, specification, code, technical requirements, test methods, inspection rules, packaging, storage, transportation and marking of synthetic staple fibers needle-punched nonwoven geotextiles. This Standard is applicable to synthetic staple fibers dry-laid and needle-punched nonwoven geotextiles which take synthetic staple fibers as the raw material and needle-punching for reinforcement. Other similar products, for example, staple fibers needle-punched composite geotextiles, can also take this as a reference.
