Compound, kit contents, and tooling follow the approved part. Names below are how buyers usually write an RFQ, not a published grade list.
- Buyer spec language
- RFQs usually name material (EPDM, NBR, silicone ply, TPE), form (molded, kit with clamps, assembly), and position (inner/outer, hot/cold, feed/return, upper/lower). These are inquiry fields, not stocked grades.
- Compound
- Selected against heat, oil contact, or pressure duty. EPDM, NBR, silicone, or TPE are confirmed per RFQ. Grade names and SAE/ISO test numbers are not listed here.
- Construction
- Layered or braided reinforcement between inner tube and cover where the duty needs it.
- Tooling
- Mould geometry checked against the approved sample before bulk. New tools are quoted separately.
- Fitment basis
- OE number, drawing, or measured old part. A part name is not enough.
- Outside this line
- Mounts, bushings, brake/clutch/A/C hoses, high-pressure power-steering hoses, and shift boots can be routed to open sourcing.