人妻少妇啊灬啊灬用力啊快,63歳の熟女セックス,国产亚洲精品久久久久久

This device can be used for GB/T17617-1998, YB/T2206.2-1998 "refractory material thermal shock resistance test method" on the aluminum silicate refractory material, basic refractory, silicon refractory materials, heat insulation refractory materials, amorphous refractory materials and other high temperature of the material of high temperature thermal shock resistance.
A, main technical parameters
1, test temperature 1350 degrees, the computer program control temperature.
2, sample size range:
(200-300) / (100 150) / (40-80) mm (long/width/height)
3, a test sample 3 pieces
4, equipped with water bad device
5, equipped with sample transfer units
6, power supply: 380 V, 12 kw

Order

亚洲黄色天堂网,午夜性刺激免费视频观看不卡专区,老牛无码人妻精品1国产,寂寞少妇被猛烈进入在线兔费观看

Thermal shock resistance instrument

留言框

Theme:

Content:

Commpany:

Name:

Telephone:

Email：

Address：

Province：

Verification Code：