Here are the corrections and the revised article:

### Identified Issues & Corrections:
1. **”anti – impact” → “anti-impact”** (Compound adjective requires hyphen)
2. **”each with their own functions” → “each designed for specific hazards”** (More precise language)
3. **”The main function of anti-impact safety shoes is to prevent falling objects from injuring the feet.” → “Anti-impact safety shoes primarily protect feet from injuries caused by falling objects.”** (Stronger verb, clearer subject-object relationship)
4. **”which forms a strong barrier for the toes” → “which provides a protective barrier for the toes”** (More natural phrasing)
5. **”the uppers are made of leather, fabric, sponge, etc., to facilitate the work of users.” → “the uppers are typically made of materials like leather, fabric, or breathable synthetics to enhance user comfort during work.”** (“Sponge” is inaccurate; “etc.” is vague; clarified purpose and improved phrasing.)
6. **”The stiffener is a key component for shaping the back part of the shoe, which is installed between the upper and the lining of the safety shoes at the back part.” → “The stiffener is a key component that provides structure to the heel area; it is installed between the upper and the lining at the back of the shoe.”** (Replaced vague “shaping” with “provides structure”; removed redundant “part”; improved flow.)
7. **”The toe cap, on the other hand, is for shaping the toe part and is installed between the upper and the lining at the front part.” → “The toe cap provides protection and structure to the toe area and is installed between the upper and the lining at the front of the shoe.”** (Clarified purpose beyond “shaping”; removed redundant “part”.)
8. **”press the stiffener and the toe cap with your fingers” → “press on the stiffener and toe cap areas with your fingers”** (More natural phrasing)
9. **”reach into the safety shoes with your hand to check” → “insert your hand into the shoe to feel”** (More natural phrasing)
10. **”If you can directly touch the stiffener or the toe cap material, it indicates poor craftsmanship.” → “If you can directly feel the stiffener or toe cap material through the lining, it indicates poor craftsmanship.”** (Added crucial phrase “through the lining” for clarity.)
11. **”wearing safety shoes for a long time may also pose some risks to our feet” → “wearing safety shoes for prolonged periods can also pose risks to foot health”** (Changed “may” to stronger “can” for common risks; “our feet” → “foot health” sounds more professional.)
12. **”overuse injuries” → “repetitive strain injuries”** (More standard medical/ergonomic term)
13. **”Therefore, when choosing safety shoes, we need to not only consider their protective functions but also pay attention to their comfort to avoid potential foot injuries.” → “Therefore, when choosing safety shoes, it’s essential to consider not only their protective capabilities but also their comfort to prevent potential foot injuries.”** (Improved flow and phrasing: “we need to not only” → “it’s essential to consider not only”; “pay attention to their comfort” → “but also their comfort”; “avoid” → “prevent”.)

### Corrected Article (Preserving Original Format):

Safety shoes play a crucial role in protecting feet in various work environments. There are different types of safety shoes, such as anti-impact safety shoes and puncture-resistant safety shoes, each designed for specific hazards.

Anti-impact safety shoes primarily protect feet from injuries caused by falling objects. The toe cap of these safety shoes is made of impact-resistant materials, which provides a protective barrier for the toes. For puncture-resistant safety shoes, their soles have strong oil resistance, and the uppers are typically made of materials like leather, fabric, or breathable synthetics to enhance user comfort during work.

When it comes to inspecting safety shoes, there are several important aspects. The stiffener is a key component that provides structure to the heel area; it is installed between the upper and the lining at the back of the shoe. The toe cap provides protection and structure to the toe area and is installed between the upper and the lining at the front of the shoe. During the inspection, press on the stiffener and toe cap areas with your fingers. High-quality safety shoes should be able to withstand this pressure. Also, insert your hand into the shoe to feel if the installation position is correct. If you can directly feel the stiffener or toe cap material through the lining, it indicates poor craftsmanship. Additionally, don’t forget to check the soles of safety shoes.

However, wearing safety shoes for prolonged periods can also pose risks to foot health. If the soles or linings of safety shoes are too hard, or if the shoe size is too small and too tight, and you stand in safety shoes for a long time, it may lead to repetitive strain injuries to the feet. Therefore, when choosing safety shoes, it’s essential to consider not only their protective capabilities but also their comfort to prevent potential foot injuries.