ST37-2 material
St37-2 under DIN 17100 standard is the most common steel grade in common carbon structural steel.
06Cr19Ni10 stainless steel
06Cr19Ni10 steel, that is 304 ss, is a common stainless steel material with density of 7.93 g / cm³.
1.Comfortable with over-head wearing style 2.Wideband audio for exceptional sound quality. 3.Volume and mute controls
1. Comfortable with over-head wearing style  2. Wideband audio for exceptional sound quality. 3. Up to 8 hours of talk time, at least 36 hours standby time
1. WideBand audio frequency makes more natural voice 2. The Ultra Noise canceling Mic filters 80% background noise 
1. The professional class headset, comfortable to wear all-day 2. The Ultra Noise canceling Mic filters 80% background noise
Q345NQR2 Steel
Q345NQR2 steel sheets supplier and exporter, Katalor has 200tons Q345NQR2 plates and Q345NQR2 steel sheets for railway rolling stock in Shanghai.
S355J2W Steel
EN10025-5 S355J2W steel is a hot rolled steel of structural quality with improved atmospheric corrosion resistance.
Q355GNH steel
Q355GNH weathering steel refers to a low-alloy structural steel with a protective rust layer that is resistant to atmospheric corrosion.
Q235NH Steel
The alloy composition and weight percentage of the Q235NH steel sheets are: C: ≤ 0.12, Si: 0.25 to 0.75, Mn: 0.2 to 0.5, S ≤ 0.02, P: 0.06 to 0.12, Cu: 0.25