Audited Supplier
| Material | 1) Aluminum: AL 6061-T6, 6063, 7075-T etc. |
| 2) Stainless steel: 303, 304, 316L, 17-4(SUS630) etc. | |
| 3) Steel: 4140, Q235, Q345B, 20#, 45# etc. | |
| 4) Titanium: TA1, TA2/GR2, TA4/GR5, TC4, TC18 etc. | |
| 5) Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90) etc. | |
| 6) Copper, Bronze, Magnesium alloy, Delrin, POM, Acrylic, PC, etc. | |
| Surface Treatment | Galvanized (zinc-plated, nickel-plated, chrome-plated, silver-plated), powder coating/oil painting, polishing (mirror polishing, electrolytic polishing),brushing, sand blasting, hot-dip galvanized. |
| Processing Craft | Engineer drawings-CNC Machining-CNC Turning-Grinding-Inspection-Package |
| Tolerance | +/-0.01mm or special requirements |
| Package | PE Bag, Paper carton box, plywood case/pallet/crate |
| Application | Auto parts, electronic products, power supply, industry cabinet, construction etc |
| Quality Control | ISO9001/ROHS/SGS |
| Drawing File Format | Solid works, Pro/E, Auto CAD, PDF |
| Features | Customized Design Sample Order Accepted Short Delivery time Competitive Prices Long time quality Insurance Professional after-sale services |
| Inspection | 1.Foundry in-house: 100% inspection on critical dimension; 100% on appearance. 2.Third Party inspection available upon requirement |
| Mainly Testing Facility | Three-dimensional measuring instrument(CMM),Salt spray test box,Dynamic balance detector, Pneumatic detection |
| Application | Medical,Semiconductor,War industry,Auto parts,Used widely |
| Delivery time | 15-20days |
| Quality Insurance | One Year |
1.Classification by material
2.Classification by parts name
3.Classification by processing method
Please click here for our product classification
We the company of Qingdao Zhengrong Precision Machinary Co., Ltd. was established in February 2007, located in chengyang district, Qingdao city.
The company has strict quality management in accordance with ISO9000.
We specialize in the processing of customized metal, aluminum, brass, stainless steel, plastic and other parts made of different materials. Our company has over 40 machines, including lathes, milling machines, grinders, wire cutting machines, CNC machines, and other equipment. We also have a professional quality inspection department and various testing equipment to ensure that products are qualified before leaving the factory.
We have over 18 years experience of cnc machining parts,professional processing of small, high-precision, special parts. We are warmly welcomed friends to visit our factory and communicate.
Processing equipment
Inspection instrument
Q1:What's kinds of information you need for quotation?
Please kindly provide 2D/3D drawing or send your sample to our factory, then we could quote for you.
Q2: Can we sign NDA?
Sure. We never divulge customers' information to anyone else.
Q3: Do you provide sample order?
Yes, we can provide you sample before mass order.
Q4: How can you ensure the quality?
We have profesional QC department to guarantee the quality.
Q5:How long does the quotation take?
Usually within 2 days, please kindly contact our 24 online sales for more inforamtion.
