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Concrete
Fiber Bragg Grating
NDT
Soil
Cement
Test mould
Strength test
Masonry on-site testing
Traffic engineering
Drilling tool
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Traffic engineering
NJ-GP Steel guardrail post embedding depth measurement apparatus(single and double channels)
NJ-EF glass bead divider
NJTT-101C Road sign Retroreflection tester
NJTT-201C Raised pavement marker Measuring Instrument (Multi angle)
NJTT-910A Reflective Film Anti-stick Paper Peeling Performance Tester
NJTT-930A Raised pavement marker Retroreflector Impact Resistance Tester
NJTT-910 Reflective Film Adhesion Performance Tester
NJTT-920A Reflective Film Bending Resistance Tester
NJTT-301V Road mark Retroreflection Measuring Instrument
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