日本视频免费高清一本18,久久精品中文字幕无码绿巨人,julia无码人妻中文字幕在线,18禁美女黄网站色大片免费看
<li id="skeki"><xmp id="skeki">
<sup id="skeki"><input id="skeki"></input></sup>
<ul id="skeki"></ul>
<strike id="skeki"></strike>
<bdo id="skeki"><del id="skeki"></del></bdo>
Chinese
English
home
about us
products
news
network
quality
application
contact us
Current location:
Home
》
Pin
products
High-precision punch anchor bolts
Basic Parameters
● Material：
Customer drawing
● Strength level：
8.8～12.9
● Specification：
M12-M100
● Material：
Carbon steel; alloy steel
●
Surface treatment: hot-dip galvanizing, mechanical galvanizing, dacromet, etc.
