ATtiny85 Digispark Micro USB Dev Board – I2C/SPI Low Power MCU Module for Arduino Projects (1-10PCS)

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HS-DD Digital Hardness Tester ASTM D2240 ISO 868 - Hardness Measurement Tool

Handheld Proving Ring Pocket Penetrometer 250 lb Capacity IP55 Protection ASTM D1558 Standard 1 Year Warranty for Soil Testing

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ASTM-F1677 Sole Anti-Slip Resistance Testing Machine Portable Tiltable Hinge Rod Slide Tester Rubber Tires Anti-Skid Test Tool

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