Aluminum alloy curtain wall 130, 130 refers to what indicators?
130 curtain wall material refers to the main wall of the curtain wall section of the longitudinal dimension of 130mm. Oh, basically the curtain wall profiles are so divided
140A, B. Because the two sets of manufacturers are 140 profiles, but the profile section is not the same ~ so with A, B, C, D and other English to distinguish
I do not know this suffix, the suffix is generally added to the distinction between manufacturers, and each manufacturers are not the same. May be the distinction between the box and the hidden frame, or wall thickness is different, Oh, this I can not say
