产品主要包括系泊系列（导览滚轮、导缆孔、滚柱导览器、、掣链器）、盖系列（油舱盖、小舱盖、人孔盖等）。
JYZY's main scope of products consists of mooring series of products like roller fairlead, roller, chock and chain stopper, etc.
舱盖有2个滚轮不转了，需要换新和修理。
Two rollers of hatch cover not turn, to be renewed or repaired.
舱盖有2个滚轮不转了，需要换新和修理。
Two rollers of hatch cover not turn, to be renewed or repaired.
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