有做球墨铸铁管出口的朋友帮忙看看什么意思?
PIPE CAST STEEL DUCTIL IRON low pressure for transportation drinking water UNDER NORM ISO 2531
+ \. c% L: g: k F/ ^5 dNorm NBR ( Brazilian norm 7663) Pipe centirfugate cast iron
7 i2 M# P! m$ j& q/ O1 mCup Diameter nominal =400 mm ea 2. T, J. G" v2 M. h- b) Z
Reducer de 300 x 250 mm ea 2
3 G/ O' V& m& \8 \7 N pJoint Gibault Diameter nominal =300 mm ea 3! |, o3 ?$ ~+ J3 w+ z
( N% r% k: t. W* o$ I! q
有做球墨铸铁管出口的朋友帮忙看看具体什么意思?
- \8 P7 N2 ]) O( @: w0 c7 q还有de/ea是指什么?
+ \- B& H6 F, n& b: w+ g; g2 j" i8 b, l
; H# p! U7 z5 a" R
谢谢!