Sirip dipencet dening garis penet sirip lan piring pungkasan ditekan dening garis penet daya minangka pretreatment, nalika mlengkung, nglereni, lan twisting tabung aluminium dening Auto Al Tube Bending Machine lan Skew lan lempitan Flattening Machine. Banjur pipa dilebokake lan ditambahi dening Double Station Insert Tube lan Mesin Ngembangake supaya pas karo pipa kanthi sirip. Sawisé iku, antarmuka wis gandheng dening Cooper Tube lan Aluminium Butt Welding Machine lan piring mburi wis nglumpuk dening Side Plate Déwan Machine. Sawise dideteksi dening Mesin Uji Bocor Banyu, unit kasebut degreased dening mesin cuci lan Piranti Blowing.