Material: Nbr, nr, cr, buna, sbr, epdm, hnbr, silicone, viton, teflon, ptfe, polyurethane, pom, nylon, polypropylene, peek, pps.
Product authentication: (usa nsf/fda; German dvg/ktw; Uk wras).
Precise product:
The precise o ring surface is smooth, none the needle eye, none ...
Products: 2 inch binders,
administration tools pack