Oilfield drilling tools
Drill collars, non-magnetic drill collars, stabilizers, reamers, drill stem subs, heavy weight drill pipe.
- HS direction: 843143
- API and inspection requirements reviewed case by case.
Industrial steel parts sourced from Jiyuan, China.
Core Steel Works helps overseas B2B buyers source oilfield drilling tools, ductile iron pipe molds, rolling mill components, and custom forged or machined steel parts from qualified Jiyuan manufacturers.
RFQ basis
Product scopeOilfield / pipe mold / mill / forging
Quote inputDrawing + material + quantity
Quality filesMTC / UT / MT / PT / dimension
OriginJiyuan, Henan supply chain
Product lines
We focus on high-value industrial parts where buyer specs, material, inspection, and repeatable quality matter.
Pipe molds
Ductile iron pipe molds, centrifugal casting molds, water-cooled molds, hot molds, chill molds, alloy tube molds.
- HS direction: 848049
- DN range, material, heat treatment, and service life drive sourcing.
Rolling mill components
Work rolls, backup rolls, mandrel bars, sizing rolls, straightening rolls, bearing chocks, gear shafts.
- HS direction: 845530 / 845590
- Replacement-by-drawing and mill fit are central.
Forged and machined parts
Forged shafts, pump shafts, motor shafts, turbine shafts, hollow shafts, deep-hole machined forgings.
- HS depends on end use
- Best for custom RFQs with drawings and quality documents.
Jiyuan supply-chain focus
Core Steel Works does not treat mechanical parts as generic catalog items. We qualify the part, the buyer's use case, and the local manufacturer fit before quoting.
Special steel, forging, heat treatment, and heavy machining capability review.
Supplier matching for drawing/specification-based industrial parts.
Material, tolerance, process, inspection, and packaging assumptions documented before quote.
No unverified claims about factory ownership, certifications, price, MOQ, or lead time.
What to send for an RFQ
A useful RFQ usually includes the drawing or product spec, material grade, quantity, annual demand if known, inspection documents required, target port or incoterm, and whether this is a trial or recurring order.