Dyne pen

Specification 30, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 24, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 56, in line with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 38, in line with the standard ASTM Standard D2578 standard and TAPPI T698 standard, built-in 15ml test solution, can be used more than 100 times.

Specification 40, in line with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 46, in line with the standard ASTM Standard D2578 standard and TAPPI T698 standard, built-in 15ml test solution, can be used more than 100 times.

Specification 36, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 26, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 42, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 25, in line with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 55, in line with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 57, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 34, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 51, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 65, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 54, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 32, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 63, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 48, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 37, standard meets ASTM Standard D2578 standard and TAPPI T698 standard, built-in 15ml test solution, can be used more than 100 times.

Specification 33, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 28, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 72, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 44, compliant with ASTM Standard D2578 and TAPPI T698 standards, built-in 15ml test solution, can be used more than 100 times.

Specification 39, in line with the standard ASTM Standard D2578 standard and TAPPI T698 standard, built-in 15ml test solution, can be used more than 100 times.