Material and finishes Plunger:Bronze or Brass or BeCu,gold plated or nickel plated; Barrel:Brass,Gold plated or Nickel plated; Spring:Stainless steel or Music wire;
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1.we have 30 years experience in probe pin and have ourself factory. 2.we provide free sample and have a testing department. 3.we could manufacture products as your request. 4.we guarantee best price and good service.