Heidelberg Printed Circuit Board BEK (00.781.3647) High-quality original Heidelberg Printed Circuit Board BEK, part number 00.781.3647. We maintain a large inventory of original and replacement components to ensure your printing operations remain productive. Key Benefits & Applications Extensive Compatibility: Designed for SM/CD 102, XL105, SM/CD/CD 74, XL75, SM/PM52, and MO series. Stock Availability: Most Heidelberg circuit boards are available in stock for immediate