Weld-Neck Flanges
WN flange form named in Weihang’s published range.
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BL blind-flange form explicitly named by Weihang.
Weihang’s product scope includes blind flanges under the BL designation. Specify the connection standard and facing of the opening being closed. Confirm drilling, thickness, material and any drawing-specific requirements with the supplier for the selected flange; the general company range does not establish the rating or closure design for an individual application.