Hebei Jimeng Yongxing Flange Pipe Fittings Co.,Ltd
GOST 12820 SO Steel Flange,GOST 12820 SO Steel Weld Neck Flange
specification:
FLANGE WELD NECK
We are an expert manufacturer for all standards of flanges, special flanges and forging parts. The annual output is 1000 tons of flanges per month.
supply GOST12820-80 PLATE FLANGE, PLAIN FLANGE, FLAT FLANGE, Raised Face Flange, monthly output 3000Ton: