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Lens circle -
Metal decorative ring -
CD pattern_ Vehicle pattern_ Lens circle -
Camera lens decoration ring -
Camera lens decoration ring -
Lens CD ring decoration
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Knob + secondary oxidation -
Audio knob secondary oxidation + knurling -
Turning knob + gear shaper -
Gear shaper + smooth knob -
Automobile decoration knob -
Knurled knob
Haisheng hardware - quality assurance, customer trust


About us Introduction to Haisheng hardware
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Introduction to Haisheng hardware Dongguan Haisheng Hardware Products Co., Ltd., founded in April 2012, is located in the first floor of gate 3, No. 68, Changsheng North Road, Dalang Town, Dongguan City, adjacent to Songshan Lake Science and Technology Industrial Park and Shenzhen, with superior geographical location and convenient transportation, it is specialized in undertaking ODM and OEM production business. Haisheng Co., Ltd
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2020-7-14 +New online! Ppt display page of Haisheng hardware enterprise -
2015-12-1 +Learning notes: working experience of aluminum oxide coloring -
2015-12-1 +Update of anodizing pretreatment process -
2015-12-1 +Core technology of hard oxidation surface treatment and aluminum oxidation processing of Dalang aluminum -
2015-12-1 +Similarities and differences between anodic oxidation and chemical oxidation -
2015-9-15 +There is no substantial change in anodizing treatment in recent years -
2015-9-4 +Analysis of machining principle of hard aluminum oxide -
2015-9-4 +Attention on hard oxidation processing of aluminum alloy shell of bright flashlight -
2015-4-23 +What is the process of hard oxide film formation? -
2015-4-23 +Development status of hard anodizing of duralumin?
More > > frequently asked questions
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What do you mean by CD pattern processing? -
With the continuous development of the times, we have a lot of new products, or new technologies, which we do not know very well, CD surface treatment is the same, so what is called
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After anodizing, there are many white spots on the surface. What is the reason? -
1. Dust on oxide film 2. Insoluble impurities in dye solution 3. Acid or alkali on oxide film
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Can aluminum alloy be dyed by hard oxidation? -
Hard aluminum alloy can also be dyed. As long as the oxidation process is well controlled, the aluminum alloy can be dyed to a certain extent
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What is hard anodizing technology? -
Hard anodizing is a kind of Anodizing of aluminum and aluminum alloy. It is characterized by thick oxide film and high hardness. It is often used in wear-resistant, heat-resistant and insulating occasions, such as piston, cylinder, bearing, etc
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What is deep anodizing? -
Our customer's requirements for aluminum parts are: deep anodizing of aluminum, what is the thickness of oxide film? Is there a standard? Aluminum natural color depth Yang
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Metal drawing shell and plastic shell which is better? -
From the perspective of process Aesthetics: undeniably, metal wire drawing shell is good! The shell made of metal wire drawing is full of texture, high-grade atmosphere on the grade. So we analyze it from the texture
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What is a metal wire drawing panel? -
Metal wire drawing refers to a treatment effect on the metal surface, which is equivalent to grinding. The wire drawing process can remove a layer on the surface of the workpiece. After drawing, there are lines. You can ask for the number of high
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Abrasive used in sandblasting -
Sand materials used in sand blasting process can be classified into two types: 1. Mineral sand