GB/T 12459  翻边短节 DN 450-Sch40SLJSch10S=18.26F aS=4.5 Sch12.5 RJ-RР“-610R@RJJMF@b40S15mbb=4200s

DN 450-Sch40S LJSch10S=18.26F aS=4.5 Sch12.5 RJ-RР“-610R@RJJMF@b40S15mbb=4200s

PL 50(A)-6 RF

wn 65-2500 RJ50/5 fm00 RF 1300-u00a3/103B)-6 RF0R

PL 32(A)-6 RF

bl10-40 rf06RF00-1611/4001hSf100-4

lwn 50-150 rf sch80 l=280

PL 25(A)-6 RF

LWN32-1500 RJ

P