人妻大战黑人白浆狂泄,中文字幕乱码人妻无码久久,免费无码Av一区二区三区,精品国产乱码久久久久软件

★ Main products: carbon brush carbon brush products, graphite products, electric tools for car use four fluorine carbon brush carbon graphite bearing plate graphite sealing products sintering mould carbon graphite raw material we will provide the best quality service, to join hands in creating a better future together with you!




Four fluorine graphiteLocation：home - product - Four fluorine graphite
Four fluorine graphite
Four fluorine …
Ptfe gasket
Ptfe gasket
Four fluorine bar
Four fluorine bar
Four fluorine glass splicer
Four fluorine …
| Total:4Records  Page:1/1  PageSize:16Records      1 


Four fluorine graphite technical performance indicators

numerical order technical index monad Numeric
1 Density g/cm2 2.1-2.3
2 strength of extension Mpa

≥25.5
3 elongation at break % ≥250
4 Hardness Kg/cm2 4.54
5 heat conductivity coefficient Kcal/m h/℃ 0.21
6 coefficient of linear expansion Cm/℃ ?
? ? -100℃ 1.09x10^-4
? ? -50℃-0℃ 1.13x10^-4
? ? 0-50℃ 1.23x10^-4
? ? 50-100℃ 1.34x10^-4
? ? 100-150℃ 1.365x10^-4
? ? 150-200℃ 1.69x10^-4
? ? 200-250℃ 2.165x10^-4
7 mass resistivity Ω/cm ≥10^17
8 sheet resistivity Ω ≥10^14
9 medium ullage tangent value Kv/mm ≤2.5x10^-4
10 disruptive strength ? ≥60
11 friction coefficient ? 0.04-0.15
12 Application temperature ℃ -180~260



ADD:Baochang town Industrial Park in Haimen City, Jiangsu Province TEL:0513-82861838/82867968
FAX:0513-82671844/82135227 EMAIL:gt@nt-gt.com
Copyright ? Nantong Guangtong Carbon Industry Co.Ltd