GB/T 12459  弯头 DN 1400-Sch80S90ELb=179-300

DN 1400-Sch80S 90ELb=179-300

47023 RF600-1.6 δ0=14

47023 m600-1.6 δ=54 h=106

BL10-16M

BL150(B)-25 FF

PL 350-10 RF4=F6/=88f

BL200(B)-16RF b=5

BL500(B)-6 RF S=4.5

BL600-300T

pl40(b)-40 rf 600s4eqid=80ebfc433 BB=182C=38 d=490160 rf023 rf58