国家/地区 中国（3）
IPC部 C（3）
IPC大类 C21（3）
IPC小类 C21D（3）
IPC C21D009/08（3）
发明人
公开年 2021（3）
申请年 2020（3） 
专利权人

Heat accumulating type environment-friendly stainless steel seamless steel pipe intelligent annealing furnace has hydraulic rod that passes through cavity of cooling box and connecting plate to form bolt connection.

JI X, YAN D

Energy-saving environment-friendly stainless steel tube annealing furnace comprises furnace body, furnace opening, power box, heating pipe, inner wall, motor, rear turntable, side edge, gas conveying pipe, and fixing pipe disc.

JIANG Z, XIANG Y, LI J, ZHANG J, WANG Y, FENG M, HUA F

High-temperature corrosion-resistant steel used for pipelines, comprises carbon, silicon, manganese, nickel, chromium, molybdenum, nitrogen, tungsten, sulfur, phosphorus, neodymium, gadolinium, yttrium and iron.

ZHANG X, DU F, LI L