GB/T 12459  同心异径管 DN 150×65-Sch40RC

DN 150×65-Sch40 RC

BL 20-600 FF/10b5ampa

SO 1 1/2"-2500 RJ0.60RJ

PL450A)-10 RFc27.1 D=1/023 R

SO 1"-300 RFÃ¥f/@so10

PL25(A)-16 RF C=16 L=14f8 sch802

PL250(B)-16RFFfm800-1.0/forum.html1.6/F2w84h80s80s80s

PL50(A)-16RF5010-58ch4=1

SO 15-150