TIANJIN BO YI DA IMPORT AND EXPORT CO.,LTD is a modern production and exporting enterprise funded in 2014 with rich-full exporting experiences.
Our Product: ROOFING, BLACK PIPE, GALVANIZED PIPE, HOLLOW SECTION, GALVANIZED WIRE, STEEL COIL, etc have been exported to Africa: West Africa, East Africa, South east Asia: Philippines, Vietnam, Singapore, South America etc. Products are widely used in building and constructions.
We firmly believe in "Quality first, Service first" and to add value to our corporation. Looking forward win win business with global customers!

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High Quality
Integrated factory strength to support all kinds of tape customization,with paper base,cloth base,glue,coating all raw material production capacity
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Advanced Equipment
Integrated factory strength to support all kinds of tape customization,with paper base,cloth base,glue,coating all raw material production capacity
03
Professional Team
Integrated factory strength to support all kinds of tape customization,with paper base,cloth base,glue,coating all raw material production capacity
04
Custom Service
Integrated factory strength to support all kinds of tape customization,with paper base,cloth base,glue,coating all raw material production capacity
Products Description

why choose our products
Schedule 40 black ERW steel pipe is the most commonly used pipe schedule. It can be galvanized although it doesn't have to be and is usually used in water and gas lines. It may also appear in places that need ornamentation or support. It makes a great pipe due to its versatility and performance strength. With schedule 40 steel pipe under so much pressure to perform, let's talk about what it is and why it can be the right choice for many projects. In the past, metal fabricators used three pipe dimensions standard, extra strong, and double extra strong. Just having these three undetermined dimensions wasn't helpful, though.
Schedule 40 black ERW steel pipe so today, steel pipes come in 14 different schedules. Most schedule 40 steel pipe is made from mild steel. This means it has a carbon content of about 0.2% to 0.25%. That's very, very low, making the alloy mostly ferrous in composition. To improve SCH 40 steel pipe's corrosion resistance, steel manufacturers usually galvanize the steel, which means to plate it with a layer of zinc. If this option is not appropriate, schedule 40 pipe does come in stainless steel.
Products Description
| Thickness | 1.3-10mm |
| Outer Diameter | 21.3-219.1mm |
| Length | 5.8m, 6m, 6.4m or Customized |
| Grade | Q235 |
| Standard | GB/T3091, BS1387, ASTM A53, EN39, BS1139 and so on |
| Wall Thickness | 1.3-100mm |
| Zinc Coating | 200-500g/m2 |
| Alloy or Not | Non-Alloy |
| Application | Fluid transport and Construction |
| Type | Welded Steel Pipe |
Products feature
Black steel pipes are a type of steel tubing that are commonly used in a variety of applications across different industries. They are known for their durability, strength, and resistance to corrosion, which makes them an ideal choice for many different types of projects. One of the main benefits of black steel pipes is their ability to withstand high temperatures and pressure. This means that they can be used in a variety of applications where high-temperature and high-pressure conditions are present, such as in the oil and gas industry, chemical processing plants, and power generation facilities. Another benefit of black steel pipes is their resistance to corrosion. This is due to the fact that they are coated with a layer of protective oil that helps to prevent rust and other forms of corrosion from forming on the surface of the pipe. This makes them ideal for use in environments where corrosion is a major concern, such as in marine applications or in areas that are exposed to harsh weather conditions. In addition to their durability and resistance to corrosion, black steel pipes are also known for their versatility. They can be used in a variety of different applications, including as structural supports, as conduits for electrical wiring, and as piping for water, gas, and other fluids. They are also commonly used in the construction industry for building structures such as buildings, bridges, and tunnels.
Our Service
Create a comprehensive solution for efficient human theft manag
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Pre-sale service
Inquiry and consulting support. View our Factory.
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Installation service
Sample testing support. 100% Granutee quanlity and quantity.
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After-sales service
Videos or photos will send to customers. Vessel tracking.

cooperative enterprise
We have exported to these countries and so on
Philippine
Vietnam
Indonesia
Algeria
Brazil
Chili
Mozambique
Togo
Ghana
Burkina Faso
South Africa
Uruguay,
Our Service Processes
Our free service hotline:0086-15822491526
Pre-sales Consultancy
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Confirmation of order
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Production
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Multi-Channel Shipping
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Confirmation of recei
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After-sale Services
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