o-ring box 1. High quality. 2. For automobile,excavator,forklifttruck,the ... . 3. Small order welcomed. 4. Low price. Details of o-ring box: 1. Materials: comply to ROHS, NBR, Silicone (VMQ), EPDM ... tolerance. 3. Tolerance: strictly upon ISO 3302-1:1996(E) M-Class or as your requested.4. Color: black, transparent, green ... help you develop the design based on your idea. O-Ring Box For Machinery