回复 1#憨老马 + \" N) n @: x8 G3 m N2 s @ ; {' i3 J' W7 s1 i" c- v 5 A; z: q& Z; P. A9 U+ z6 u 在网上看到这个:" E( T$ h$ F, k1 z
SMS fittings are named from Swedish Dairy Standard ( Svensk MeieriStandard ) * e# t0 O9 L: Z$ c. t7 _* v9 a+ N( T
There are a multitude of variants in pipe-clips and clamps and couplings and unions that is commonly used all over Europe. $ O: P5 i# f2 }$ L* O+ N6 }! X 6 q& E8 g: T% q; v' u4 `. \# ^There are several other standards, DS (Danish Standard) and the Germans have several DIN standards such as DIN 11851 & 11887 and probably many others. - U" I: C! B0 `% {: d 3 }+ B( f" X8 b3 o/ A/ a: T 8 G! u$ p. ]- O" v$ I7 z: o供参考。