HG/T 20592  法兰盖 BL 40-40 RF

BL 40(A)-40 RF

WN 300-150 RF Sch405 B

PL 32-150 RF 3160a1 r@F8600R5 RJAfFmpa

WN300-600RJ S0

BL125-63RJHF--23668-R

PL80(B)-16 RF

WN200-600RFS=10

WN 40-300 RFh4mpaFFmpa1217.5 RJj@5c2@RF@443RF@AFF ScF&@RJРR074=4.50�40@S5 RJr S=6RF10

PL150(B)-16 RF

WN