Code on the drawing

2009-08-18View Original

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What do B35/B15 mean, which are indicated behind the valves and on the pipes in the drawings? What does S.S/ALU mean, which is marked on some throttle plates? Please help me understand this.

Reply #22009-08-19

Are they: stainless steel (S.S.), aluminum alloy (Alu)?

Reply #32009-08-19

These are the markings on the low-pressure throttle orifice plate of the liquid nitrogen cooling box; the material information shouldn’t be indicated here, right? 2# cuikk

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Code on the drawing

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