Description
Q345D/E coil
Grades representation
Steel grades by the representative of the yield strength of the Chinese phonetic alphabet, yield strength values, composed of three parts quality rating symbol, such as:
Q345D/E. among them:
Q- steel yield strength "Qu" Hanyu Pinyin first letter of the word;
345 yield strength value, the unit MPa;
D/E- quality level D/E grade (grade divided into A, B, C, D, E).
When the demand side need to have a plate thickness direction of the performance, after the grades specified above plusrepresentatives of the thickness direction (Z direction) performance level of symbols, for example: Q345D/EZ15.
Implementation of the standards: GB / T1591 (GB / T3274).
Specifications: 1.5 * 1250 * C
2.0 * 1250 * C
2.5 * 1250 * C
3.0 * 1500 * C
4.0 * 1500 * C
5.0 * 1500 * C
6.0 * 1500 * C
8.0 * 1500 * C
10.0 * 1500 * C
主站蜘蛛池模板：
www国产精品内
|
午夜无码亚洲影院
|
99久久国产精品免费人妻
|
97久久精品无码一区二区
|
丰满人妻久久中文字8av国产
|
91露脸对
|
福利片福利一区二区三区
|
日韩av女优影片
|
午夜福利啪啪片
|
丰满人妻熟妇乱又伦精品劲
|
99精品久久久久久久
|
99国产精品无码久久久久
|
av边做边流奶水无码
|
国产成年免费大片黄在线观看
|
91老肥熟迅雷下载
|
国产v一区二区三区色欲
|
91精品亚洲欧美一区二区综合
|
波多野结衣国产一区二区三区的在线直播平台
|
av收藏夹
|
国产v综合v亚洲欧美大天堂
|
国产精品久久久久久久久免费高
|
91无码人妻一区二区成人aⅴ
|
91一区二区三区久久国产乱
|
91视频精品安全吗
|
99久久e免费热视频百度
|
av无码久久久久不卡蜜桃
|
91精品国产闺蜜国产
|
成人h在线
|
成人一级免费视频
|
丰满爆乳无码一区二
|
91久久人澡
|
97国产成人精品免费视频
|
一区二区三区欧美日韩精品在线
|
www黄色免费|
91探花|
日韩av亚洲
|
japanese日本护士xxx
|
97蜜桃网站高清日韩在线观看
|
高清精品自在久久国产
|
午夜福利久久久噜久噜久久综合
|
av麻豆狂野
|
