Model:5/8 3/4 7/8 1
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1.Features:
(1)Meterial:high quality alloy
(2)Technics:hot rolling
(3)Placement:female
(4)Surface treatment:phosphating, blueing
(5)Standard reference:SY/T5029-2006, API 11B
(6)good sealing, anti-friction

1.Features:
(1)Meterial:high quality alloy
(2)Technics:hot rolling
(3)Placement:female
(4)Surface treatment:phosphating, blueing
(5)Standard reference:SY/T5029-2006, API 11B
(6)good sealing, anti-friction



