3 in,Tee ASME B16.9 BW Wrought S ASTM A 403 GR.WP321 NACE MR
三通 EQUAL TEE;ASME B16.9;ASTM A234GR.WPB;SMLS;BW;Sch
一个管件的描述45 ELL LR,BW,304LSS ASTM A403-WP304L-S,ASME B16.9 S-4
英语翻译Flanged Long Welding Neck,ASTM A-182 Gr.F304L ASME B16.5
ASTM A105 ASME B16.
"3""BSPT 150LB RF Screwed Flange ASTM/ASME SA105N ANSI B16.5
90 elbow welded bw s-std ss astm a403 gr.wp304 cryogenic ser
PIPE,SMLS,BE,S-20,CS ASTM SA106 GR.B,ASME-B36.10M
PIPE ASTM A 106 GR.B,SMLS,BE.ASME B 36.10
Pipe,ASME B36.10M,BE,E.F.W.,ASTM A 671 GR.CC 65 CLASS 22 LOW
,PIPE,SMLS,LTCS,ASTM A 333-3,ASME,B36,10M,S-80;断面形式:PE.帮忙解释哈
astm b16.5标准与asme b16.5标准有什么区别?急 astm b16.5的法兰标准哪有?
ASTM A-53 Gr B