... plate or aluminum plate6.size: from1/6HP to 20HP7.with heating tube or without ; fin painted or not8.suitable for R134A, ... .widely used in refrigeration industry and other cooling and heating system.12.we can supply products as per customized ... samples or drawing.13.producing procedure: tube bending, punching fin, expanding, digressing, dryingWelding, leakage test, bending ...