16Mn焊管 http://www./16mnhg/ zh-cn Rss Generator By SDCMS 1.3.1 16Mn焊管 http://www./16mnhg/34.html 16Mn焊管

16Mn焊管属于碳锰钢管,碳的含量在0.16%左右,屈服点等于343MPa(强度级别属?43MPa...

]]>