Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd (TBT) is a world leader specialized in exporting testing instruments and equipment for the field of civil engineering, scientific research. Our products are especially necessary for civil engineering constructions, including machines and accessories that can conduct soil testing, cement testing, concrete testing, asphalt testing, material testing and NDT.
sales network
our customers are mainly distributed in South-East Asia(Vietnam/Thailand/Indonesia/Philippine/Singapore/ Cambodia), South Africa, South America, Australia, Iran, Egypt, New Zealand, Spain. At the same time, we are endeavoring to develop our local sales agent in different countries.
Our Target
To be the largest and most professional supplier for products in our business scope through our efforts!
To be the best friend and solid cooperator of our customers!
To be the first supplier at customer's first thought when they need to order!
■ You can always get our in-time reply via email or telephone or instant messenger;
■ You can always get best product with excellent quality and competitive price;
■ You can always get goods news for on-time or advanced shipment at your desire;
■ You can always enjoy our considerable & full-side after-sales service;
■ You can always feel very convenient since we can help you sourcing and ship products from
different factories via one shipment, which to a large extent save your time and cost;
Single Angle Retroreflectometer for Traffic Signs TBTTSR-1J
TBTTSR-1J adopts single observation angle and illumination angle for measuring RA(nighttime retroreflection) on traffic sign, high visibility clothing, conspicuity tape and license plate.
Ground Penetrating Radar (GPR) Array TBTGPR-MIMO
TBTGPR-MIMO 3D GPR array system is a controller-antenna integrated multiple-input and multiple-output detecting system, the military grade anti-vibration design features it more convenient and flexible for using, even in complex environments the radar system still work stably and reliably.
Retroreflectometer for Road Marking with RL & Qd Value TBTRMR-1J
TBTRMR-1J is used to determine the retroreflective properties by simulating the process in which vehicle headlamps illuminate the road/airport markings and then reflect light back to the driver.
[News] FWD vs LWD: What Is the Difference in Pavement Testing?2026-11-03
2026-11-03
Pavement testing plays an important role in road construction, quality control, and infrastructure maintenance. Engineers need reliable testing methods to evaluate pavement conditions, assess material stiffness, and make informed decisions about maintenance and rehabilitation. Two commonly used devices for this purpose are the Falling Weight Deflectometer (FWD) and the Lightweight Deflectometer (LWD).
[News] How to Select a Road Surface Profiler for Highway Inspection2026-08-11
2026-08-11
Road surface profiling provides essential data for evaluating pavement smoothness and surface condition. By measuring longitudinal pavement profiles and calculating key indicators such as the International Roughness Index (IRI), Standard Deviation (σ), Ride Quality Index (RQI), Ride Number (RN), and Sensor-Measured Texture Depth (SMTD), road authorities and maintenance contractors can better assess pavement performance, identify sections requiring maintenance, and support data-driven pavement management.
[News] FWD vs LWD: What Is the Difference in Pavement Testing?2026-11-03
2026-11-03
Pavement testing plays an important role in road construction, quality control, and infrastructure maintenance. Engineers need reliable testing methods to evaluate pavement conditions, assess material stiffness, and make informed decisions about maintenance and rehabilitation. Two commonly used devices for this purpose are the Falling Weight Deflectometer (FWD) and the Lightweight Deflectometer (LWD).
[News] How to Select a Road Surface Profiler for Highway Inspection2026-08-11
2026-08-11
Road surface profiling provides essential data for evaluating pavement smoothness and surface condition. By measuring longitudinal pavement profiles and calculating key indicators such as the International Roughness Index (IRI), Standard Deviation (σ), Ride Quality Index (RQI), Ride Number (RN), and Sensor-Measured Texture Depth (SMTD), road authorities and maintenance contractors can better assess pavement performance, identify sections requiring maintenance, and support data-driven pavement management.