欧洲自拍另类欧美综合图片区,国产精品无码一区二区三区不卡免费,久久久久久亚洲精品乱码蜜桃不卡,久久婷婷丁香五月天

The test program

According to the result of sample test, the material should be divided into 94-5 va or 94-5 vb

Test procedure is as follows:

Without burning through samples for 94-5 va

Burn through samples for 94-5 vb

Sample: 5 "x 1/2" x thickness (rod) 6 "x 8" x thickness (plate) for typical thickness (1/16, "1/8", 1/4 ")