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Copper Coil Air Conditioner Copper Tube With High Standard Copper And Wide Specifications​ Type: copper tube , copper branch pipe , copper tee , copper elbow , copper fitting , copper reducer , copper coupling , copper coil , red copper bellows , etc copper tube Technical Parameters: Nominal D. (mm) Nom-inal O.D.(mm) Thickness(mm) Theoretical weight(kg/m) hard(Y) half hard(MY) Soft(M) Type A B C Max. working preasure (P Mpa) Max. working preasure (P Mpa) Max. working preasure