精天 越平 博勒飞 恒美 东岭电气 淄博正工

1-600000mPa·s 0.6-6000000mPa·s 6-80000000mPa.s 50-10000000mPa.s

±1% ±2% ±3% ±5%

±0.2% ±0.5% ±1%