The QN range of products has different application areas depending on the product standard; QN1701 (201/430) for inland building envelopes, animal husbandry; QN1803 (304) for decorative welded pipes, municipal facilities; QN1804L (321/304) for the food machinery industry; QN1906Mo (316L) for coastal construction roofing industry and QN2109Mo (317L) for marine ranching and industrial applications. (The content in brackets corresponds to US standards).

Answers

• 
  Why are seamless steel pipes stronger? 31/10/2025 14:08:30
• 
  Is stainless steel wire better at preventing rust than galvanized steel wire? 31/10/2025 07:36:00
• 
  How to distinguish between hot-dip galvanizing and cold-dip galvanizing? 28/10/2025 14:16:19
• 
  What are the production processes and differences between welded steel pipes and spiral steel pipes? 27/10/2025 16:41:23
• 
  What are the characteristics of double-sided submerged arc spiral steel pipe? 27/10/2025 08:16:52