GB/T 12459  弯头 DN 80-Ⅱ-490ESh05Р°ввҖһвҖ

DN 80-Ⅱ-4 90ESh05Р°ввҖһвҖ

WN 150-40 FM S=4.5��WN100(BchF ذ“ز“ذ–’ذ“ز¶

2 FM600-2.5 s=8Frf/rfFRFj sch(BchF ذ“ز“ذ–’ذ“ز¶

PL500-16RJFRFCH80┴5A00(BchF ذ“ز“ذ–’ذ“ز¶

BL500(B)-