人与动人物A级毛片在线,被老头一个晚上做了6次,无人区一码二码乱码区别,久久国产老子精品无码

Electric floating ball valve is a rotary valve with a rotation Angle of 90°, featuring excellent sealing performance, large flow coefficient, small flow resistance coefficient, simple structure, long service life and easy maintenance.The products are widely used in chemical industry, petroleum, light textile, electric power, food pharmaceutical, refrigeration, paper industry system control.

Product model: Q941Y Q941H. Q941F. Q941PPL
Nominal diameter: DN15 ~ 400mm
Nominal pressure: PN1.6~ 6.4MPa
Applicable medium: water, petroleum, nitric acid, acetic acid, viscous fluid, slurry, strong oxidizing medium, etc
Applicable temperature: -40 ~ +180℃ -40 ~ +350℃
Working temperature: room temperature.The high temperature
Connection form: Flange
Main materials: A105, F304, F316, WCB, FZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8, CF8M, CF3M