C-form and Spiral-form,Helix-form:
State of Delivery: C-form,Helix-form,Spiral-form
Spec:Standard or special according to the customer’s requirement.
Capability and Use:The hardness of surface can reach to HV 350-370(HRC37) after
aged.When make the beryllium copper tube to pressure gauge spring
tube, the indicator can show to zero more than 500,000 times.It
widely used in oxygen pressure gauge,petroleum,chemical
pipeline,precision instrument and mechine,measure pressure