Services
Customer Support – 24/7
+86 155-1086-4645
Logistics
TTF’s logistics and supply chain management system simplifies your inventory and optimizes shipping and delivery of your product.
At our factory, we carefully inspect raw material from all sources, making sure that the quality of final product is strictly in line with any manufacturing standards of your choice.
In order to make your delivery on time, we operate a network of warehouse across continents. We also provide frequent updates about the status of your order with videos and photographs.
OEM/ODM
OEM and ODM are all manufacturing terms used across the world. OEM is the short for Original Equipment Manufacturer. ODM stands for Original Design Manufacturer.
TTF’s OEM/ODM services create custom-made products based on specific power utility requirements from you.
Hot-dip galvanized
The process of immersing fabricated steel in molten zinc in a kettle or vat is known as hot-dip galvanizing (HDG). The process has a significant advantage over other corrosion protection methods due to its inherent simplicity.
The iron in the steel metallurgically reacts with the molten zinc in the kettle to form a tightly-bonded alloy coating that protects the steel from corrosion.
casting
Casting is a manufacturing process that entails pouring a liquid material into a mold with a hollow cavity of the desired shape and allowing it to solidify. The solidified part, also known as a casting, is ejected or broken out of the mold to complete the process.
Casting materials are typically metals or time-setting materials that cure after the combination of two or more components; epoxy, concrete, plaster, and clay are examples.
ASTM A-153
- Coating Thickness/Weight depends on the material category and steel thickness.
- Threaded Products areas with threads are not subject to the coating thickness requirement.
- Finish continuous, smooth, uniform.
- Embrittlement high tensile strength fasteners (>150ksi) and castings can be subject to embrittlement.
- Appearance free from uncoated areas, blisters, flux deposits and gross dross inclusions as well as having no heavy zinc deposits that interfere with intended use.
- Adherence the entire coating should have a strong adherence throughout the service life of hot-dip galvanized steel.
ISO 898‑1
ISO 898-1:2013 is applicable to bolts, screws and studs
- made of carbon steel or alloy steel,
- having triangular ISO metric screw thread in accordance with ISO 68-1,
- with coarse pitch thread M1,6 to M39, and fine pitch thread M8×1 to M39×3,
- with diameter/pitch combinations in accordance with ISO 261 and ISO 262, and
- having thread tolerances in accordance with ISO 965-1, ISO 965-2 and ISO 965-4.