THE MATERIAL: ALUMINIUMAVAILABLE: BITZER AND COPERLAND COMPRESSOR.REASONABLE PRICEHIGH QUALITYWE ARE A FACTORY AND CAN MAKE FOR YOUR REQUIRMENT.THE DELIVERY TIME: 40DAYSLOADING OF PORT: NINGBO OR SHANGHAIExcept various compressor piston/pin/ring ,connection rod production also supply different model cooling compressor.