We produce reciprocating type refrigerating compressor (include 70 serieses,100 serieseses,125 serieseses,170 serieses), various refrigerating whole set equipments (include condenser, evaporator , ammonia receiver, low-pressure cycle reservoir, ammonia & oil separator, intermediate cooler, air cooler...etc.) and ice machine, electric control equipments, ammonia valve, single tunnel freezer, shield electricity pump etc..