fix(pcb):修复铜厚在表格中列数

src/main/java/com/uas/platform/b2c/prod/commodity/constant/UploadConstant.java

@@ -134,7 +134,7 @@ public final class UploadConstant {
     /**
      * 铜厚（pcb）
      */
-    public static final int THICK_COPPER = 29;
+    public static final int THICK_COPPER = 19;
 
     /**
      * 厚度（pcb）