生产项目职业病危害
Occupational hazard of production project
SPHD低碳低硅钢
SPHD low carbon and low silicon steel
低产低效
Low yield and poor benefit
inefficient and low-yield
低产低效井
Low produce and effect well
低产低效林
southeast prefecture guizhou province
低产低压
Low Production and Low Pressure
低产低液油井
Low-productivity and Low-liquid Oil Wells
低碳低硅
Low Carbon and Low Silicon
Low-carbon low-silicon
低碳低硅TRIP钢
low-carbon low-silicon TRIP steel
低碳低硅钢
low-carbon and low-silicon steel grade
low-carbon and low-silicon steel
low carbon low silicon steel
low-silicon and low-carbon steel
低碳低硅高铝钢
low carbon low silicon high aluminum steel
低碳低硅铝镇静钢
low carbon low silicon Al-killed steel