Integral quenching design of forging hardness and toughness of high strength steel The multi-section design is suitable for ordinary copper pipes/aluminum pipes of ordinary refrigeration systems such as ordinary refrigerators and air conditioners. design is suitable for metric and English multi-clock size, which is convenient to carry and simple to expand the tube. Easy to use, very suitable for installers. Widely used in the maintenance of refrigerators, air conditioners, freezers and other refrigeration equipment., Manufacturer: Akfldms