国家/地区 中国（2）
IPC部 B（2）
IPC大类 B05（2） C09（2）
IPC小类 B05D（2）
IPC B05D001/02（2）
发明人
公开年
申请年 2022（2）
专利权人

Preparing coating for screw thread, comprises e.g. providing workpieces with screw thread, pretreating screw thread part of workpieces with screw thread; sandblasting workpiece with screw thread after pretreatment; and preheating workpiece with screw thread after sandblasting.

SUN J, WANG Y, WANG L, LI R, SONG X, LIU X

High temperature resistant and acid-resistant coating applied to tail gas device of calcination rotary kiln comprises steel plate, outer side of steel plate is coated with insulating coating, inner wall of steel plate is coated with inner coating,.

ZHANG W, ZHAO G