About Chengchuang Industrial Limited - CNC Machines & Spare Parts Supplier in China

China‑based Chengchuang Industrial Limited lists seven active product entries across the categories CNC Machines & Spare Parts and Injection Moulded Products. The catalogue includes CNC Machining For Various Metal Parts (HS 8479.90) covering copper, aluminum and stainless‑steel grades, Cnc Turnings Parts (HS 8466.93) made from stainless‑steel 304/316, aluminium 6061, brass C360, carbon and alloy steels, CMC Machining Parts (HS 8483.50) in aluminium 6061‑T6, stainless‑steel 304 and carbon steel, Fixed Block Of The RC Cars (HS 8483.40) using aluminium alloy 6061‑T6 or hardened carbon steel, plus generic entries for Stamping Mould And Injection Mold, CNC Turning Parts and Cnc Machining without specific HS codes.

The listed materials span copper, aluminium alloys (6061‑T6), stainless‑steel grades 304/316, brass C360, carbon and alloy steels, reflecting typical metal‑working alloys used in precision machining. All HS codes fall within the machine‑tool accessory and machined‑part chapters (8479, 8466, 8483), a classification common for exported CNC‑produced components from China to global manufacturing hubs.

Product Range and Specialties of Chengchuang Industrial Limited

The product set focuses on precision CNC turning, milling and machining of metallic components. In the CNC sector, buyers usually specify tolerances of ±0.01 mm, surface finishes of Ra 0.8 µm or better, and material certifications such as ASTM B209 for aluminium or ASTM A240 for stainless‑steel. Common grades cited in the catalogue - aluminium 6061‑T6, stainless‑steel 304/316, brass C360 and carbon steel - align with ISO 9001‑controlled processes for dimensional accuracy and repeatability.

For the mould‑related entries, stamping and injection moulds are typically fabricated from tool steels such as P20 or H13, with heat‑treated hardness between 45‑55 HRC. Buyers of moulds often request mould‑flow analysis data, cavity‑core dimension drawings and surface‑hardness certificates. Standard container loading for metal‑machined parts ranges from 10 t to 12 t in a 20‑ft container, depending on part size and packaging.

Trade and Export Information - Chengchuang Industrial Limited

China remains one of the world’s largest exporters of CNC‑machined metal parts, with major import destinations in the United States, the European Union, Japan and Southeast Asian manufacturing clusters. The HS families 8479, 8466 and 8483 are routinely inspected under customs regimes that may require import‑country certificates of conformity, such as CE marking for the EU or FCC compliance for electronic‑enclosure parts. Typical certifications requested by importers include ISO 9001 quality‑management, ISO 14001 environmental compliance and, where electronic applications are involved, RoHS or REACH declarations.

Logistically, machined components are packed in wooden crates or reinforced cardboard boxes with anti‑corrosion coating and moisture‑absorbing packs. Standard Incoterms used by Chinese CNC exporters are FOB Shanghai or CIF major ports such as Ningbo and Shenzhen. Export documentation generally includes a commercial invoice, packing list, certificate of origin and, when required, a third‑party inspection report (e.g., SGS or Bureau Veritas).

Sourcing from Chengchuang Industrial Limited - Buyer Guidance

Buyers should obtain material test reports (MTR) that reference the exact alloy and heat‑treatment condition (e.g., aluminium 6061‑T6 tensile strength ≈ 310 MPa). Request detailed engineering drawings with specified tolerances, surface‑finish requirements and any post‑machining treatments such as anodizing or passivation. Verification of the HS code on the commercial invoice against the product description helps avoid customs delays.

Typical minimum order quantities range from 500 pcs for small precision parts to 1 ton for bulk‑shape components, with a standard lead time of 30‑45 days after final design approval and tooling confirmation. Prior to shipment, ask for a pre‑shipment inspection report covering dimensions, material conformity and surface finish. Confirm packaging details - crate dimensions, weight per carton and any protective coating - to ensure safe handling during ocean freight.

What metal alloys can Chengchuang machine for CNC parts?

The catalogue lists copper, aluminium alloys (6061‑T6), stainless‑steel grades 304 and 316, brass C360, carbon steel and various alloy steels. Each alloy can be supplied with the appropriate heat‑treatment state as specified in the buyer’s drawing.

Which HS codes correspond to the listed CNC‑machined products?

CNC Machining For Various Metal Parts is classified under HS 8479.90, Cnc Turnings Parts under HS 8466.93, CMC Machining Parts under HS 8483.50 and Fixed Block Of The RC Cars under HS 8483.40. The remaining generic entries fall within the same 84‑chapter range for machined metal parts.

What certifications should a buyer request for these machined components?

Buyers typically request an ISO 9001 quality‑management certificate, material test reports conforming to ASTM or EN standards, and, for EU shipments, a CE declaration of conformity. RoHS or REACH statements are advisable when the parts are destined for electronic assemblies.

What are the usual minimum order quantities and lead times?

MOQ generally starts at 500 pieces for small precision items or 1 ton for larger bulk parts. After design approval, the standard production lead time is 30‑45 days, subject to tooling complexity.

How are the CNC‑machined parts packaged for export?

Parts are usually packed in wooden crates or reinforced cartons with anti‑corrosion coating and moisture‑absorbing packs. Each crate is labeled with the HS code, material grade and net weight to facilitate customs clearance.

Can Chengchuang accommodate custom design specifications?

Yes, the supplier can process custom CAD models and produce parts to specified tolerances, surface finishes and heat‑treatment conditions. Buyers should provide detailed engineering drawings and any required functional test criteria.

Which regions are the primary import markets for Chengchuang’s CNC products?

Typical import markets include North America, the European Union, Japan and the fast‑growing manufacturing sectors of Southeast Asia. These regions frequently source CNC‑machined components for automotive, aerospace and consumer‑electronics applications.