As the value of knowledge increases, Yeetian is always at the forefront of innovation in the eyewear industry, with proprietary techniques and patented concepts.  

We provide a high level of customer satisfaction by combining our innovative technologies with traditional skills and market knowledge to create the most popular designs and styles. 

Our innovative technologies are delivered through a team of highly trained and skilled designers, opticians, engineers and craftsmen, committed to bringing our clients’ dreams to reality.

The Process




Quality Control

More Than 135 Procedures be Taken to Make One Piece of Sunglass

Acetate Die-cutting to CNC

Blanks for plastic eyeglass frames are die cut from sheets of cellulose-acetate.
After the design and technical drawing is decide, a die is made out of steel and is fitted in a blanking machine that punches blanks out of the sheets of cellulose-acetate. 
The blank frame fronts are finished in a series of operations. 
The frames are then smoothed to remove rough edges by two different abrasive machines.

12 Procedures

Producing Acetate Temple

The temples are also punched out of sheets of acetate with blanking dies. 

The temples may be flat with angular edges or rounded in shape, depending on the frame style. 

The temples are heated, and a narrow strip of steel called a core wire is also heated. 

When the right temperatures are reached, a core wire is inserted into the center of the softened temple.

11 Procedures

Accessories and Splicing

After the frames and temples are made separately, we need to do some fine work. 

There will be some small decorative pieces, hinges, nose bridge and other small parts on the glasses. 

Each small part is carefully crafted by machine, welding, and hand.

22 Procedures


All the soldering processes(bridge soldering, temple soldering, lock soldering, rim soldering etc. are made my steady mold, that allow us tooffer customers frames with precision dimensions. 

Using Japanese tin to assure the soldering qualtiy.

26 Procedures


The glasses will be polished for 4-5 days in a roller filled with diamond-shaped wood blocks, fine sand, polishing powder, and a little grease. 

Cotton wheels, wool wheels, white wax, purple wax, and yellow wax are all polishing tools and materials in different processes. 

We polish the rough surface of the frames and temples to be smooth and round without scratching. 

After a few links, the glasses will slowly reveal their gem-like luster.

10 Procedures

Plating & Color Praying

IP plating called physical vapor deposition or ion assisted deposition or ion vapor deposition. It is an exciting and new modern technique used for a eyewear. 
This process is used to apply a hardwearing and durable finish to products. +Nickel-Free Plating: 100% nickel-free plating is hypo-allergenic to protect those with sensitive skin and allergies. 
Rubber Coating: nickel-free rubber coating is applied to metal and acetate/plastic to create a soft, sporty look and feel.

12 Procedures

Assembling & Putting Logo

Assembling comprise cellulose acetate front, temple, metal frames, related accessories, Lens, screws etc. components to the right position. 

Each frame has its own exclusive brand mark. 

We use laser, engraving, printing, stamping to put the brand and other information on the lens&temple accordingly.

28 Procedures

Quality Inspection & Packaging

Eyeglasses frames must be manufactured with great attention to oriented detail. 

Although processes for making frames are performed by machines, operators are responsible for each step and are quality control checkers for their particular operations. 

We strictly control all the manufacturing process via total 27 inspections.

14 Procedures

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