HG/T 20592  法兰 PL 40-2.5 MLGRFscda600 HF Sch60/44F25ampampampam600 RF Sch40=3

PL 40-2.5 MLGRFscda600 HF Sch60/44F25ampampampam600 RF Sch40=3

SO 25(B)-16 RF

3 A2

WN 20(B)-16 RF S=≥3

WN40-300 G SCH160F��o@40-0.6&amRF��ทะ’ะ†ะ“ัžะฒ�50(AT.6&

WN 80-300 RF Sch80/data

BL 80-300 RF/data

TPB-2 Lc=300 DN=100