Liquid Nitrogen Cryogenic Container, Laboratory Refrigeration, Artificial Insemination Equipment manufacturer / supplier in China, offering China Manufacturer OEM Cattle Breeding Gun - 0.5ml/0.25ml Semen Straw Compatible, Veterinary Grade Cattle Insemination Gun with Anti-Slip Core - ISO Certified, Premium 304 Stainless Steel Cattle Ai Gun - 0.25ml/0.5ml Frozen Semen Applicator and so on.