The ZX-83B, N-1416, and ZX-2312 flame retardants are halogen-free, environmentally friendly retardants. They contain no asbestos, naphthalene or its derivatives, or other prohibited substances, and meet all environmental requirements for export. The product offers good flame-retardant and smoke-suppressing effects, low melt Mooney viscosity, and good flow properties, facilitating extrusion molding, and is especially suitable for rubber profile seals.