American Metal Technology (Lang fang) Co, Ltd. is specialized in precision casting, machining, mould design & manufacturing.
American Metal Technology (Langfang) Co., Ltd. is specialized in machining metallic components and parts. our output of precision casting is 2400 tons per year, and 1,000,000 machined parts per month. Our products apply for: valve part, pipe and fittings, Automobile parts, Aerospace parts, Marine hardware parts, food machinery parts,etc. AMTG adopt advanced silicon sol shell investment casting process, and various advanced precision casting equipment, certified by ISO9001,ISO14001 and PED. Now we are one of the most largest OEM enterprises, with large scale and advanced technology. We have been reliable Global Supplier for many Multinational Company. Products selled to all over the world.
Our investment casting process:
1) Enhancing casting parts dimensional accuracy, decreasing the surface roughness, minimizing cut amount of finish, meanwhile,Improving product grades.
2) Producing thin wall thickness, Small and lightweight parts, and parts with fine pattern,letters, grooves or curve holes.
3) Integrating work operations of sand casting, forging and machining, to accomplish complex parts, improve part performance. And eliminating problems and artificial fault during assembly.
4) Suitable for all kinds of alloy materials, especially for high-melting-point alloy small and complex casting parts.
Materials Standards: GB(China),ASTM-A351(U.S.),DIN(Germany),JIS(Janpan).
Materials supplied: Stainless steel, Carbon steel, Low alloy steel, Aluminium alloy, Copper alloy,etc.
Machined Castings weight: 0.003KG~35kg.
Angle tolerance:±1°; Special tolerance:±1/2°.
Castings Surface Roughness: Ra3.2~Ra12.5