Material: ASTM A216 WCB, ASTM A351 CF8，ASTM A351 CF8M
Bolted bonnet cap with drain plug
Size: 1/2' -32'
Pressure: 150LB, 300LB, 600LB,
Design and manufacture: ANSI B16.34
Face to face dimension: ANSI B16.10
Flange end: ANSI B16.5
Inspection and test: API 6D or API 598
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