HG/T 21574  吊耳 SP-37

SP-3736

SP-5593

法兰/@WN100(B)-16 RF)

DN80-PN6 WN RF Ⅱ

SP-8159

3 B6399

WN65(B)-40T

SO 600(B)-10 RF

bii 2998

WN 450-150 RF Sch80-63 RF S=9RF Ⅱ=33 b=6 C=23 BB=484pampampampampamf@40@S5 RJrvl50 RF Sch40 H=442F SchRF Sch4050-0u)-16 RF93919682RJrvlR