GB/T 12459  弯头 DN 20-590EShchpa.c SCH40S RF==135

DN 20-5 90EShchpa.c SCH40S RF==135

LWN 2"-600 RF B=60sch80/S144 Bh10 FM('/@A 10RFS

PL125-16 RF HG/T164mm0g/

PL 150-10 FFذ°آ’ذ²ï؟½

WN65(A)-16 RF n=4 NA=90 AA=76/10

WN65-160GF SCH40S0bB.6RFRF RF RF Sf3-

WN32-150rf)0Sch40=650

BL 20016-16