plywood,B这个是客人发过来的椅子板材料的英文：plywood,Bplywood是夹板，

网友回答

应该是胶合面为B级别的胶合板.
因为在北美胶合板一般分A,B,C和D四个级别.
参照：The mon veneer grades for plywood are A,B,C,C-plugged and D.The plywood panel itself is defined by the grade of the face and back veneers (e.g.,A-B or C-D).
======以下答案可供参考======
供参考答案1:
胶合板，乙供参考答案2:
plywood ['plaiwud] n. 夹板，胶合板
夹板B,胶合板B