—缸筒：调质处理，精制衍磨工艺，提高油缸密封性能
— TUBE---hardening and tempering , refined honing for increased  sealability
—缸盖：球墨铸铁，增加了导向长度，提高了油缸的使 用寿命。
— CYLINDER COVER---Ductile iron for increased working life

       活塞：球墨铸铁，提高延震性

      PISTON—Ductile iron for increased durability
—活塞杆：钢制，优制坚硬，镀铬厚0.03mm,调质硬度HB200--230

     ROD—steel, superior and hard, chromeplated 0.03mm thick for a final surface hardness    HB200--230

     密封件----高品质 ，日本

     SEALS—Top quality, made in Japan

    油漆---标准黑色，按客户要求定制

    PAINT—Standard color: black ; customized