Product Description

Needle core material alloy steel, hardness 92 (detectable), the needle inside the shell plus copper sleeve more solid. 

All needles with carbide steel chamber overall processing, wear-resistant alloy guide portion embedded sets, needle core are made of high strength alloy, prolonged use of continuous needle tip does not collapse. 

Pneumatic marking machine needles, all carbide materials, high wear bronze, professional quality, precision casting!

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