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OEM metal machinery part
1. We are proud to inform you that we are an assessed spring manufacturer by Alibaba&BV
1)The first one passed the French BV certification in this line
2)Own 18 years of spring production technology experience
3)Passed ISO9001:2008 and SGS certifications
4)100% guarantee the uncondition return or reproduction for quality problems
5)Do advetisement in the New York Times Square in April
2. Let you know us
Material | SWC/SUS/SWP/phosphor copper/aluminium alloy/brass/enamelled wire etc. |
Wire diameter | 0.15mm~50mm |
Processing craft | Material purchased-production-heat treatment-surface treatment-package-shipping |
Finish | nickel plating, chrome plating, zinc plating, beryllium copper, coating firm, melanism etc. |
Application | hardware, plastic parts, toy, automobile, electrommunication, lamps and lanterns, clamp, switch, mirror, gift, art ware, molds, electric appliance |
The scale of our company | Above 2000 square meters |
Employee numbers | 30~50, and our group are becoming larger |
Technician | >10 they have rich experience and some along with our company from setting up. |
QC | >4 , they are professional workman and responsible for their job and customer. |
Salesman | >8, All are university graduates. |
Quality certification | Passed ISO 9001:2008,SGS,the French BV authentications |
Scope of business | UK/EU/US/AUS/In etc.We have exported to 20 Countries at least. |
Type of shipping | By sea/air/DHL/Fedex etc. |
Payment terms | T/T,L/C,Western Union or Paypal |
Advanced machine | We imported compression spring machine and computer spring machine |
Founded date | Established in 2004, but we have 18 years of spring production technology |
3. Surface treatment classification
| Surface treatment | Fuction |
| Blacking | Avoid rusting |
| Zinc-plated | Good antirust function, environment friendly |
| Nickel-plated | Good antirust function, used for decorating and conducting electricity, environment friendly, |
| Chrome-plated | Good antirust function, used for decoration, good looking |
| Copper-plated | Good antirust function, used for conducting electricity |
| Silver-plated | Good antirust function, used for conducting electricity |
| Gold plated | Good antirust function, used for conducting electricity |
| Electrophoresis | Good antirust function, good looking |
| Power coated | Good antirust function, good looking |
| PVC coated | Good antirust function, good looking |
4. Material classification
| Material | Fuction |
| Stainless steel | Good antirust performance, toughness is so so. |
| Carbon steel | Good flexibility, good toughness |
| Brass | Good conductivity, bad elasticity |
| Phosphor bronze | Good conductivity, good elasticity |
| Beryllium copper | Good conductivity, good elasticity |
| Conductive strength | Stainless steel ≤ carbon steel ≤ Brass= Phosphor bronze = Beryllium copper |
| Elastic strength | Brass ≤ Phosphor bronze ≤ Beryllium copper ≤ Stainless steel ≤ Carbon steel |
5. Certifications
6. Work environment
7. Products show
OEM metal machinery part(hongsheng)