国产视频一区在线观看_公么大龟弄得我好舒服秀_免费女人18a级毛片视频_综合天天

Home / Product

Product

Instrument

Instrument needle valve

Nominal pressure：PN2.5~16.0MPa
Nominal diameter：DN6~50mm(1/2"~2")

The needle valve is made of forged steel, small in size and easy to use, and is composed of an external screw tube and an internal thread. It is suitable for gas equipment container to connect pressure gauge, and can also be used as cutting medium on oil and gas pipeline.