日韩福利片午夜在线观看资源_日本精品少妇一区二区三区_深夜爽爽动态图无遮无挡_日韩精品一区二区三区影院 亚洲国产精品综合久久网各_亚洲熟妇丰满xxxxx_亚洲精品国产av成拍色拍_风流少妇按摩来高潮

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.