汽車拋光棉  製造商、經銷商、供應商

科赫化學:卓越的專家

自1968年以來，我們的家族公司一直致力於在清洗化學品、車輛維修、車間和工業領域提供高質量的清潔和護理產品。 通過不斷的改進和對細節的熱愛而脫穎而出的傳統:卓越的專家。 在我們這個行業，我們是為數不多的自行研究、生產和營銷的公司之一。
我們認同我們的商業地點，德國，以其高質量，社會和環境標準。 作為一個係統供應商，我們為整個汽車行業提供全麵的產品係列。 對我們來說，以客為本的服務和優良的產品質量同樣重要。 經過幾十年的研究和與我們苛刻的客戶的密切合作，我們現在屬於世界領先者。
係統與服務
通過與汽車工業、洗滌和服務水處理廠的製造商以及每天幾百個客戶的密切合作，我們始終準確地知道市場的需求。 我們使用這些信息來開發麵向目標的創新產品和概念，並優化您的結果和流程操作。 此外，作為眾多化學品供應商中為數不多的開發商和生產商之一，我們可以直接接觸原材料部門的所有創新。
我們的全國客戶服務為您提供稱職和定期的現場支持。 我們的員工將樂於在產品應用、流程優化、洗車設置、廢水和服務用水優化以及環境保護和職業安全問題等方麵為您提供幫助。 我們所有的客戶服務員工都有一份符合DIN 1999-100的輕質液體分離器專業知識證明證書。
質量與環境保護
作為全國車輛配員協會職業培訓和考試委員會的成員，我們開發了一個獨特的培訓係統。 此外，我們是聯邦加油站和商用車輛清洗協會（Bundesverband Tankstellen und Gewerbliche Autowäsche-BTG）的成員，擁有完整的符合VDA標準的生產線，並獲得全球領先汽車製造商的批準
Koch-Chemie代表高質量、環境和社會標準。 例如，我們使用可持續的原材料製成的表麵活性劑。 此外，所有表麵活性劑和絡合劑都很容易生物降解，超出了嚴格的法定要求。 我們不使用鹵化碳氫化合物、EDTA和APEO等危險成分。 我們的環境管理係統通過了DIN EN ISO 14001認證。

LECHMANN Engineering GmbH stands for perfection in aluminium for decades.
We offer everything from a single source: we plan, develop, produce, refine, print, assemble and advise you on all topics related to this fascinating material.
We realise customised solutions as well as series of several thousand pieces.
We offer a variety of products and solutions perfectly adapted for your requirements.

Laizhou Weiyi experimental machine manufacturing Co., Ltd. Was estabilished in 2001, covering 55 acres, which is one leading enterprise in the field of a professional R&D, manufacturing metallographic sample preparation erquipment. Was identifiel as Technology high-tech enterprises by Shandong Provicial Science, Shandong Academy of Sciences Research Building.
In 2004 the company pasend the ISO9001 quality management system certification, in 2011 the company obtained CE certification, laid the foundation for a comprehensive international markets.
Weiyi company owns two wholly owned subsidiaries, Feng Feng Grinding Wheel Co.,Ltd and Shandong Weiyi important and export Co., Ltd. Feng Feng Grinding wheel Co., Ltd product Weiyi metallographic cutting wheel and Liboshi High resin grinding wheel and polished piece, these products were exported to more than 70 countries around the world.
Weiyi has owned the first market share of the industry for many years.
A number of key national research institutes, laboratories project as “First Research Institute of Ministry of Public Security Testing Center”, “8 Institute for Nuclear Industry”, “China Railway Science Research metals and Chemistry Institute”, “China Helicopter Design Institute of Physical and Chemical Testing Center 602 metering”, “Chinese Academy of Sciences Lanzhou Institute of Chemical Physics Solid Lubrication State Key Laboratory”, and hundreds of colleges and universities including Tsinghua University, domestic steel company, more than 120 automotive manufacturers are in practical Wei-Products.
WEIYI can design and develop metallographic equipments according to the user’s special requirements.
WeiYi’s quality policy is Standardized management, focusing on quality, continuous innovation, sincere service.”

3R Additive Technology Company Limited is a leading one-stop solution provider for advanced metal manufacturing and precision processing, rooted in China. Specializing in additive manufacturing (3D printing) and integrated traditional metalworking technologies, we deliver high-quality custom metal parts and end-to-end manufacturing services to global industrial clients across aerospace, automotive, medical, electronics, energy, and other high-demand sectors.Our Core Capabilities & Offerings
We cover the full lifecycle of metal manufacturing, with comprehensive services and products including:
1. Additive Manufacturing (3D Printing) Technologies
Selective Laser Melting (SLM) & Selective Laser Sintering (SLS): Advanced metal 3D printing for complex lightweight structures (e.g., lattice/hollow parts) with >90% material utilization.
Metal 3D Printing Prototypes & Production: Custom metal prototypes, 3D printed moulds, and end-use parts for rapid R&D and small-batch production.
Industrial Metal 3D Printers: Supply of professional-grade metal 3D printing equipment for in-house manufacturing needs.
2. Precision CNC Machining & Manufacturing
CNC Machining / CNC-Fertigung: Multi-axis (including 5-axis) CNC milling/turning for micron-level precision components (tolerance down to ±0.001mm).
CNC Manufacturing: Full-process CNC production for precision parts, covering prototype manufacturing and mass production.
Laser Cutting: High-precision laser cutting for metal sheets and custom components.
3. Metal Forming, Casting & Forging
Metal Injection Moulding (MIM / Metallspritzguss): High-volume production of micro-precision metal parts (e.g., 5G connectors, medical implants) with tight tolerances (±0.1–0.3mm).
Casting Solutions: Sand casting, die casting (Druckguss), precision casting (Präzisionsguss), and precision die casting for large/complex metal components.
Forging Services: Cold forging (Kaltschmieden) and custom forging work (Schmiedearbeiten) for high-strength structural parts (30%–50% higher strength than castings).
Tube Bending (Rohrbiegearbeiten): Weld-free CNC tube bending for automotive cooling/exhaust pipes, energy transmission pipelines, and medical tubing systems.
4. Surface Finishing & Advanced Processing
Polishing Services: Mechanical/chemical polishing, ultrafine polishing (Feinstpolieren), and mirror finishing (Ra ≤ 0.02μm) for medical/optical/aesthetic metal parts.
Polishing Equipment: Supply of metal polishing machines (Metallpoliermaschinen) and polishing apparatus (Poliergeräte).
Powder Metallurgy (Pulvermetallurgie): Near-net shaping for high-efficiency, low-waste metal parts (e.g., micro-motor components, sensor cores).
Powder Coating (Pulverdecklackierung): Corrosion-resistant surface coating for durable metal components.
Welded Parts (Schweissteile): Custom welded metal components for structural applications.
5. Specialized Materials & Precision Components
Metal Powder (Metallpulver): High-purity metal powders for additive manufacturing and powder metallurgy.
Titanium Alloys (Titanlegierungen) & Titanium Parts (Titanteile): Medical-grade and aerospace-grade titanium components for high-performance applications.
Precision Parts Manufacture (Präzisionsteilelieferung): Custom precision metal parts tailored to client specifications (supports 2D/3D drawings in STEP/IGS format).
Rapid Prototyping: Fast prototype development for product validation and R&D acceleration.

Industry Applications
We provide tailored metal manufacturing solutions for core industrial sectors:
Aerospace: Lightweight 3D printed components, high-strength forged parts, and precision CNC machined parts (compliant with AS9100 standards).
Automotive: Forged/cast structural parts, MIM sensor components, and tube bending for exhaust/cooling systems.
Medical: FDA-compliant 3D printed implants, MIM dental components, and precision polished medical devices.
Electronics & 3C: Micro-precision MIM/CNC parts for 5G connectors, foldable devices, and consumer electronics.
Energy: Forged wind power spindles, precision cast pump bodies, and corrosion-resistant tube bending for oil/gas/nuclear applications.

Our Core Strengths
✅ One-Stop Service: From prototype design (rapid prototyping) to mass production, we manage every stage of metal manufacturing under one roof.✅ Customization: Flexible MOQs and tailored solutions for small-batch R&D and large-scale production.✅ Quality Assurance: Compliance with international standards (CE, ISO, DIN, ANSI) and rigorous in-house quality control (inspection reports available).✅ Speed: Fast sampling (3–7 days) and efficient production cycles to meet tight project deadlines.✅ Global Reach: Export-ready products and services, supporting international clients with seamless logistics and cross-border communication.

Whether you need complex 3D printed parts, precision CNC components, or custom metal forming solutions, 3R Additive Technology is your trusted partner for advanced metal manufacturing.