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Purpose:
It is mainly used for measuring the length of the concrete specimens under specified conditions of temperature and humidity changes. Products comply with GB50119 "technical specification for concrete admixture application of standard requirements.
Technical parameters：
Size of specimen：100 X 100 X 515mm
Measuring Range：534 ~ 545mm
Length of standard rod：540 ± 0.2mm
Measuring range of dial gauge：0-10mm
