API 7K SCR DC Drive Control Module for Oilfield Drilling Equipment DC CONTROL MODULE Ross Hill's standard DC module has been utilized for over a quarter of a century. The module has proven itself by being the number one SCR bridge controller in the drilling industry. PRODUCT DESCRIPTION Ross Hill's standard DC module has been utilized for over a quarter of a century. The module has proven itself by being the number one SCR bridge controller in the drilling industry. Although
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