Meter. Of course, the bearing of the cast iron square box has a close relationship with his actual design and actual production and processing. When customers purchase square boxes, they often have partial parameters with national standards. We know that the square box is designed according to the "People's Republic of China Machinery Industry Standards" JB/T 7974-2001, and the actual needs should also consider the actual needs. Therefore, the height of the square box, the working surface, the ribs, etc. can be reasonably changed during the design to suit the actual demand for the square box.
The selection of materials for cast iron square boxes is also changing with the development of the economy. From the HT150 in the 1960s and 1970s to the current HT200 and even HT250, some users have adopted the HT300, which means that the company has The economy is strong, and people pay more attention to the quality of the square box.
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