又大又粗又爽的少妇免费视频,国产精品视频观看裸模,亚洲高清国产拍精品26u,精品一区二区三区在线视频

×

YT030G geotextile effective aperture tester(dry screening)

Video
Gallery
360°Show
×
×
×
Applicable scope
Test principles and standards
Instrument characteristics
Configuration list

Method for determination of the effective pore size of geotextile and compound geotextiles, its performance is in line with national standards, and suitable for the screen analysis on materials in laboratory by geology, metallurgy, chemical industry, coal, national defense, scientific research, grinding wheel, cement, construction and other departments.

JTG E50   GB/T 14799