I am a salesgirl whose company produce digital temperature controller, temperature recorder and pressure instruments. Our products are mainly used in refrigeration equipment. I want to promote our products to factory of cold chain equipment, while I do not know where the cold chain logistics get the cold chain equipment, such as cold room,refrigerated vehicle. Whom can i contact? The installer of cold room, refrigerated warehouse? I guess the engineer on this forum can help me. Any reply is appreciated very much. Thank you!