Stainless steel welded stainless steel: Stainless steel: Refers to resistance to air, water, acids, alkalis, salts and their solutions and other corrosive media, alloy steel with a high degree of chemical oscillating general heat-resistant steel: Heat-resistant steel: including antioxidant Steel and hot-strength steel.

Anti-oxidation steel refers to steel that has anti-oxidation function at high temperature, and does not require high-temperature strength.

Hot-strength steel: It means that it has anti-oxidation ability at high temperature and high-temperature strength.

Thermal steel strength: , or ability to resist plastic deformation in long-term tasks at high temperatures (creepy heat resistance: resistance to fracture (durable strength) at long-term tasks at high temperatures).