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  Chongqing SPF

  All yield high grade lumber With relatively small,sound tight knots. S- P-F lumber is distinctly white wood, with very little color variation between sapwood and heartwood. The wood generally has a bright, clean appearance, ranging in colour from white to pale yellow, with a fine straight grain and smooth texture.

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  SPF manufacturers

  The SPF grades produced by SPF manufacturers are: Class J surface appearance visual inspection. No defects, no defects, no bending, bowing, distortion. Strength and appearance are the main characteristics. Used in buildings, ...

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  SPF

  SPF wood is the most widely used combination of trees in the construction industry due to its straightness, strength to weight ratio, processability, value and availability. Because SPF grows slowly in the cold northern forests of Canada, its texture...