We hereby certify：
第一个宾语从句
that material covered(1) by this report
[has been inspected in accordance with](2), and [has been found to meet](3) ,
the application requirements (described herein)(4) ,
(including any specifications forming a part of the description)
第二个宾语从句
and that the samples (representative of the material)(6)
[met](7) composition limits
and [had](8) the mechanical properties (shown on the face of this sheet)(9) .
(1)cover这里=include, or deal with 包括、涉及、处理等.
(2)(3)并列结构谓语,宾语同为后面的the application requirements. 说先是依据要求检查了这些材料,然后得出的结果是满足条件.
(4)后置定语,这里所说明的适用要求
(5)分词状语.上述说明中任何的规格说明.
(6)后置定语
(7)(8)并列谓语.
(9)此处face=front or main side (of sth)
我们由此证明了：
根据此处的适用需求,检查并确认此报告中涉及的材料确实符合(设计)描述中的所有规格；
材料的典型样本的成分也在指标要求范围内,且满足的机械(力学)性质见本页正面所示.