国产一区二区三区无码免费,国产又粗又猛又黄又爽无遮挡,国产又粗又猛又爽又黄的视频在线观看动漫,国产又大又硬又粗,亚洲AV成人无码一区二区三区在线观看

•  Working Pressure: 2000PSI～5000PSI

•  Nominal Bore: 2.1/16"

•  Working Medium: oil、natural gas、mud and gas containing H2S、CO2

•  Working Temperature: -46°C～121°C（Class LU）

•  Material Class: AA、BB、CC、DD、EE、FF、HH

•  Specification level: PSL1-4

•  Performance Requirement: PR1-2

•  Adjustable range：0~600PSI