Increasingly stringent emission regulations have imposed strict requirements on the particulate matter (PM) from gasoline direct injection (GDI) engines. and the gasoline particulate filters (GPFs) are considered one of the most promising devices for meeting these requirement. To reduce the flow resistance of the GPF. a type of nested cylinder and diversion channel plug (NC-DCP) GPF i... https://www.jalyttlers.shop/product-category/glass-tumblers/