Hightemperatureoperation without varnishing valves and clutches.
没有过油阀和高温度离合器的运作。
2
Especially attention shall be taken that the National Standards of Fasteners can not be used for hightemperatureoperation, weldability and corrosion res...
本企业尤其要注意国家标准不适合于高温范围、可焊接和耐腐蚀性的紧固件。
3
Inorganic non-metallic hightemperature plugging material is designed for heavy oil thermal recovery of hightemperatureoperation and development of plugging new material.