Black steel chrome plating steel ring, plastic lens, brass internal connection and joint.

黑铁壳,电镀铁圈, 塑面, 铜机芯,铜管子,铜接头.

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Black steel case, black stack steel ring, glass lens, brass internal and connection, stainless steel joint.

黑铁壳, 黑铁圈, 玻璃面, 铜机芯,铜管子, 不锈钢接头.

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Usually magnetic roller protection ring ( roll shoulder ) and calibration of the matrix is a steel ring.

通常磁性辊保护环 ( 辊肩 ) 和校准环的基体为不锈钢.

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