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20ź

20ź-רҵĺͷ 20ź 20ź ھܼƹƵõĺͣƷǰԳͨõԭϺսġ 2
ƷǼ 5
ߣ 400-8090-196

20źͲȾơʵͼϳΪҪԭϼӼͶ.

Ʒͺţ20ź
Ʒ16Ͱ170kgͰװ
Ʒܣ20ź;ͼѵԡ


ص

20źܷ֮ļ϶ֹȼ䣬ڲء
Էͷã8źͰ涨Ϻ
20źͺϳɻʯͻиõĵܺԣҹϱļʹá

 


GJB 1219—91

 

÷Χ
20źҪڻʽշס˻ Ħ󻬺ȴ


 

ݣ

20ź Ŀ ָ
˶ճ(100)/(mm2/s) 20 GB/T265
˶ճȱ(50/100棩 ≤7.8 GB/T265
Ʒ(տ)/ ≥230 GB261
Ʒ/ ≤-18 GB510
Ʒֵ(KOH)/(mg/g) ≤0.03 GB264
Ʒܶ(20)/(kg/m3) ≤0.896 GB/T 1884
(250),min ≥26 SY 2618

 
ע

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