External thread needle valve main parts materials:
External thread welded needle valve shape is the most suitable for use with pressure gauges.Needle valve with internal thread needle valves General needle valves are made of threaded connections. The spool of the needle valve is a very sharp cone, which is inserted into the seat like a needle.
Hubei Wan 'an HCYY liquid closed sampler, sampler, high temperature process sampling, import closed sampler, closed sampler, liquid sampler
Hubei Wan 'an HCYY liquid closed sampler, sampler, high temperature process sampling, import closed sampler, closed sampler, liquid sampler
Hubei Wan 'an HCYY liquid closed sampler, sampler, high temperature process sampling, import closed sampler, closed sampler, liquid sampler