ダブルペンギン冷凍
主な特長:
Color-Changing Indicator: SGN/SGS models feature a built-in moisture indicator that alters color to show water levels.
Advanced PTFE Sealing: SGN/SGR use modified PTFE materials for excellent sealing across various refrigerants and oils.
Safe Observation: The heavy-duty explosion-proof crimped design (SGN/SGR) ensures clear and safe viewing.
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