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Damage or fouled relief valve seat.
安全阀阀座损坏或受到污染。
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Damaged or fouled relief valve seat.
安全阀阀座受到损坏或污染。
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Place the relief valve seat back into the chamber bore.
将安全阀阀座放回到镗孔内。
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Remove the pressed in relief valve seat and seat O-ring.
拆卸压进去的安全阀阀座和阀座o形环。
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Major production and distribution piston rings and valve seat.
主要生产和经销活塞环及气门座圈。