亚洲A∨无码一区二区三区_久久亚洲综合色一区二区三区_一区二区三区免费电影_亚洲AV日韩AV天堂一区二区三区

修改這篇文章 : Why use a washer?

推廣信息

分類目錄: *

信息類型: *

公司庫品牌庫產品庫供應信息求購信息服務項目解決方案業界資訊新聞事件展會信息名詞解釋知識庫文章招聘信息網址連接圖片庫資料下載創業加盟招商合作促銷活動其它信息

標題: *

詳細內容: *

1. Characteristics and application of high-strength fasteners 1) High-strength fasteners refer to fasteners with higher performance levels, including high-strength bolts, high-strength nuts, high-strength washers, high-strength screws, and high-strength studs. High-strength bolts generally refer to GB / T 3098.1-2010 “Fastener Mechanical Performance Bolts, Screws and Studs” performance level marking system and mechanical performance grade> = 8.8 bolts; high-strength nuts usually refer to GB / T 3098.2-2015 “fastener mechanical properties” Nuts “performance level marking system and nuts with mechanical performance level> = 8. High-strength washers usually refer to high-strength washers for steel structures (GB / T 1230-2006″ High-strength washers for steel structures “) and high-strength bolts Washer (Heavy Machinery Standard JB / ZQ 4080-2006 “High StrengthBolt special washer》), the former has a hardness of 35HRC -45HRC, and the latter has a tensile strength of 900MPa ( = M100). The performance level of high-strength fasteners reflects the strength of its material. The higher the performance level, the higher the strength of the material, the greater the clamping force that can be generated. The high-strength screws, high-strength studs, and high-strength bolts implement standards. The same, the characteristics are basically the same, the use is basically the same. For the convenience of description, this article only refers to high-strength bolts, high-strength screws, and studs. 2) High-strength fasteners have high mechanical strength. Compared with ordinary fasteners (mainly referring to the mechanical performance level of bolts

上傳圖片:

* (jpg , gif , png) format

聯系人信息

姓名: *

電子信箱: *

手機:

公司名稱:

聯系電話:

詳細地址:

郵政編碼:

網址URL:

其他

關鍵詞:

有效期:

* 天

管理密碼:*

* 刪除/修改

更換密碼:

* 如有必要，可重新設置新的管理密碼

刪除此信息

*