Tianjin Grewin Co., ltd, who always pay great attention to its business philosophy " Quality and Honesty First". We have both design and produce advantages about clamp on current transformers, current probes, split core current transformer, mini voltage transformers, hall sensors, low voltage current transformers.

Grewin Mission:

Growing together side by side,

Mutual success hand in hand.

Grewin Values:

Behaving: Fitness Confidence Honesty Gratefulness

Acting: Profession Efficiency Team-work Passion

Achievements at work, realization of your goal..