Complex sentence: Plastic 1/25 scale model kits were issued by Aurora Plastics Corporation under catalog number 832 beginning in 1969, these were never reissued by Aurora, but have since been reissued as high-end, resin-based kits.
Split into simpler sentences: Plastic 1/25 scale model kits were issued by Aurora Plastics Corporation under catalog number 832 beginning in 1969. These were never reissued by Aurora, but have since been released as high-end, resin-based kits.