Johns Manville launches multi-end roving MultiStar® 272 in North America
Johns Manville Johns Manville (JM), a leading manufacturer of high-quality building and specialty products and a Berkshire Hathaway company, is pleased to introduce MultiStar® 272 Multi-End (assembled) Roving to the North American market. Multi-End roving is a fiberglass material in which multiple strands of fiber are bundled together to create a stronger, more versatile product …