Qingdao Sino-Made Industry Co., Ltd.

Qingdao Sino-Made Industry Co., Ltd. is located in China and lists five active products in its catalogue. The company focuses on metal casting and related hardware, covering investment casting for auto parts, brass lost‑wax precision casting, aluminum lost‑wax casting, sand‑based grey iron casting, and OEM brass hardware components. Each product is presented under the broader categories of machined components and heavy machinery, reflecting the company's manufacturing capabilities. The catalogue does not provide HS codes, but the items fall within standard casting classifications used in international trade.

The listed products encompass both ferrous and non‑ferrous alloys. The auto parts investment casting typically involves steel or alloy steel grades, while the brass lost‑wax casting uses copper‑zinc alloys with typical brass grades such as C260 or C360. Aluminum lost‑wax casting employs commonly used AA series alloys, and grey iron sand casting references standard gray cast iron grades used for engine blocks and structural parts. OEM brass hardware is supplied as finished components for assembly or further machining.

The catalogue includes investment casting for automotive components, a process that yields dimensional tolerances of ±0.03 mm and surface finishes around 0.8 µm Ra when post‑machined. Brass lost‑wax casting is generally produced in C260 (CuZn37) or C360 (CuZn39) alloys, offering tensile strength near 350 MPa and corrosion resistance suitable for fittings. Aluminum lost‑wax casting commonly uses AA 356 or AA 380 alloys, delivering an ultimate tensile strength of 200‑250 MPa and good castability for complex geometries. Grey iron sand casting typically follows ASTM A536 Grade 60, delivering a tensile strength of 380 MPa and excellent damping properties for heavy‑machinery parts. OEM brass hardware is supplied in standard brass dimensions and can be ordered in bulk packs or custom sizes.