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通径：DN15~DN50 设计标准：GB/T 12236
The design standard of check valve is according to the requirements of GB/T12236 standard: the structural length is GB/T12221 standard, the flange standard: HG/T20592 standard: wall thickness standard: GB/T12224: pressure test standard: GB/T26480 standard; The nominal diameter includes DN15-DN50, and the nominal pressure includes 1.6MPa-2.5MPa-4.0MP.
Add：No.16 xingyu road, airport area wenzhou city,zhejiang, china.
Tel：+86-577-8800 9888
Email：xtvalve@xintaivalves.com
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