Driven by design, focused on service, committed to qualityÂ
Donrex, Inc located in Qingdao, is a world class manufacturer and supplier since 2001.Â
PRODUCT INTERVIEW:





Â
Material | Carbon steel, Stainless steel, Alloy steel, Aluminum, etc. |
Specification | G401;G402;G403 |
Main equipment | 2500T/1600T/1000T/630T/400T drop forging equipment, grinding pressure equipment, hydraulic forging press, CNC-machines, machine-center |
Surface treatment | hot dip zinc coating, galvanizing, machining, polishing, anti-rust oil, nickel plating, chrome plating, painting. |
Service | OEM/ODMÂ |
Process | Open die forging (free drop forging or hot forging)-normalizing &Â tempering proof machining-quenching &Â tempering-fine machining |
Certification | ISO9001 |
Quality assurance | Loading testing, chemical analysis, mechanical testing and metallography, etc. |
Test equipment | Optical spectrum analyzer, CMM, hardness test equipment, tensile test machine |
QC | 1) technicians self-check in production 2) engineer spot check in production 3) QC inspects after mass production finished 4) international sales who were trained the technical know-how spot check before shipping. |
OUR PRODUCT PACKAGE:
The below package are for your reference:
1. Little bag, good carton and strong pallet
2.Little inner box , then carton and strong wooden pallet
3. Gunny bag as your requests, then the strong pallet
4. Gunny bag, then wooden box.
5. We can custom the package according to your requests, and we can print your LOGO on your package.

OUR SRVICE:
1.20 years of manufacturing success in China and exporting experience worldwide                          2. Global specialized producer of stamping and cnc machining.
3.We combine our own resources with some other welldeveloped factories to fulfill a wide range of contract manufacturing capabiliti es. Working with one source, saves time and money.
4. Satisfied supplier of 7 big companies from North America and Europe.                               Â
5. Low cost mold materials and focus on efficiency offer a cost effective solution to your metal component purchasing requirements.                                                                   Â
6. Normal lead times range from 1 to 6 weeks for fully-machined components.
FAQ:
1. Can we get the samples? |
Yes, we can supply you the samples for checking our quality within 10-30 days. |
2. Can we place a trial order first time? |
Yes, we are glad to supply you small trial order, and hope your quantity will be big in future. |
3. Can you help us to do the customs clearance of import? |
Yes, we can help you to do the customs clearance. |
4.What is your lead-time? |
With our design, fabrication and manufacturing skills and experience, we can efficiently exceed your expectations and meet the time frame required. However, we guarantee that quality and service are never compromised. |
Â
Â
The main production and sales of ZA, ZAO, ZE petrochemical pumps, CZ chemical process pumps, IH chemical centrifugal pumps, FY submersible pumps, YL series long-axis submersible pumps, LJYA series slurry pumps, WFB non-sealed self-control self-priming pumps, ZH Type horizontal self-priming pump, TB series synchronous self-priming pump, D, DF series vertical, horizontal multi-stage Centrifugal Pump, AY oil pump, IHG (ISG), SG type pipeline centrifugal pump, G type screw pump, LSB series high temperature sulfuric acid Pumps, FSB type fluorine plastic reinforced alloy pumps, CQ (F) series magnetic pumps, IHF lined fluorine pumps, FJX forced circulation pumps, SPP chemical mixed flow pumps, TL type desulfurization pumps, ZM, ZML type slurry pumps, etc. 28 kinds of materials, 30 series of more than 1,000 specifications of special alloy chemical pumps, valves, stainless steel pipe fittings, fluorine pipe fittings. And successfully passed the ISO9001: 2008 quality system certification.
First-class design technology requires advanced processing technology to ensure the manufacture of high-quality equipment. The company has introduced a number of imported precision machine tools, including large floor boring and milling machines, gantry type, vertical and horizontal machining centers, CNC lathes, CNC laser cutting machines, precision large plane, cylindrical, guide rail grinders, etc. At the same time, it has key testing equipment such as vibration aging, high-frequency heat treatment, API laser interferometer, etc., to ensure product processing accuracy and assembly quality.
Drilling Mud Pumps,Centrifugal Pumps,Sand Pumps,Chemical Pumps
Rugao Yaou Import & Export Trade Co., Ltd , https://www.ntyaoumachinery.com