1,high/low temperature resistance 2,according to your drawing,sample or detailed size 3, RoHs cetificate 1) Various non-standard size are available2) RoHS directive compliant green products3) Available materials: SILICON, NBR, SBR, NR,EPDM,IIR,EP,CR etc4 )All manufacturing processes confirm to the ISO9001, ISO14001 and ROHS system5) Excellent chemical and physical property6) Customers' designs ...