Stainless steel listening needle

Listening needle, also known as listening stick, listening leak device, listening needle rod, listening exposure device, listening rod, etc. Types of listening needles: stainless steel listening needles, chrome plated tool steel listening needles, alloy copper listening needles, etc. Now there are also pen style electronic listening needles and so on. Users can choose different listening needle products according to their own needs. The listening needle is made of non-ferrous metal that cannot produce sparks through punching or impact, and is processed. It has good density, stable mechanical properties, and good toughness. The performance meets Class II and Class C standards, and the operation in hydrogen gas with a test concentration of 21% does not ignite gas and does not produce sparks