The products are widely used in railway, bridge, construction, machinery, metallurgy, military industry, aerospace, automobile and other fields, and the business is extended to the overseas markets of more than 120 countries and regions such as Russia, Dubai, Germany, Japan, Australia, Chile, Peru and South Africa
Code for acceptance of high
strength bolts
First of all, we should check the packaging to see if the packaging box has strong moisture resistance. The box should be a combination of high-strength bolt connection pairs. Different high-strength bolts cannot be mixed together according to the regulations. The weight of each box shall not exceed 40 kg.
As for how to separate the packing case, it is entirely up to the manufacturer to choose. On the outside of the packing case, there should be the name of the manufacturer, the name of the product, the standard number, batch number, specification and quantity of the product. More strictly, it should be marked with obvious marks such as gross weight. During the inspection, we should check the quality inspection report and factory certificate provided by the manufacturer.
Inspection shall be carried out according to batches when leaving the factory. High strength bolts shall have the same performance grade and the same batch number as heat number and thread specification length. Mechanical processing, heat treatment process and surface treatment process are the same batch number.
It should be noted here that the maximum quantity of high-strength bolt connection pairs to ensure the supply of torque coefficient is 3000 sets.
The company's main business: steel structure nuts, steel structure bolts, high-strength nuts, high-strength bolts, special-shaped nuts, special-shaped bolts
