The upper sidewall is made of ASTM-A-297 HI heat-resistant steel material, precision cast with coated sand core, and optimized for performance through solution heat treatment. Its recommended long-term use temperature does not exceed 1250 ℃.
The end sidewall is made of ASTM-A-297 HI heat-resistant steel material, precision cast with coated sand core, and optimized for performance through solution heat treatment. Its recommended long-term use temperature does not exceed 1250 ℃.