胶合板的分级标准

胶合板的分级标准

The National Hardwood Lumber Association(NHLA) sets minimum standards by which lumber is sorted into specific grades.Within the same grade, there is a range of quality and yields. Understanding your needs and matching them to the correct product source can become extremely important in ensuring you obtain the best yields. The following information provides a quick overview from the NHLA Grade Rule Book for the grading of most hardwoods.Please speak to your Sales Representative if you wish to receive a complete copy of the NHLA Grade Rule Book.Our trained sales staff will consult with you to help you determine which is best for your specific application.Grading is based on the size and number of clear cuttings that can be cut from a board.In rough lumber,the grade is then determined by using the poorest face.The minimum requirements for each grade are presented in descending order.