1.many different weights treatments,and coating to suit the industrial application. 2.experienced workers 3.competitive price polyester needle felt thickness 1.8mm air permeability 200-350 tensile strengthwarp ≥1300weft≥1800tensile elongation%warp<35weft<40temperaturecontinue130instant150anti-acid medial anti-alkali middle anti-anrasion excellent hydroly sisstabilitymiddle finishing ...
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