日韩欧美一二区_亚洲无码 鲁 鲁 更健康_国产美女一区三区_中文欧美日韩无线码_中文字幕亚洲激情_国产成人精品男人的天堂538_毛片影院在线观看_很黄很湿18以免费视频_国产乱子伦精品中文_过程网站在线观看黄

There are three types of bonnet design: Bolted Bonnet(BB),Welded Bonnet(WB) and Pressure-sealed Bonnet(PSB) 

Product model: Z11Y.Z61Y
Nominal size: NPS3/8"~2"
Nominal pressure: Class150-800lb
Applicable medium: water, steam, oil, etc
Applicable temperature: -29℃ ~ 550℃
Main materials: A105, A182F22, A182 F304 (L), A182 F316 (L)
Standard: API 602, BS5352, ANSI B16.34
Testing and acceptance: API 598
Identification standard: MSS SP-25