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Main features: marginal pressure strength was 1.40 times of A German mark, puncture strength is 1.33 times of A mark in Germany, burst strength is 1.35 times of A mark in Germany, and all the indexes were all more than the American standard, satisfy the single corrugated blockbuster carton export transportation requirement in our country.

Application: apply to single tile four composite corrugated board can replace part of the double corrugated cardboard.