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Stainless steel round bars are solid long steel materials with a perfect circular cross-section. The industry uniformly adopts the millimeter value of steel diameter as the specification standard. For example, a round bar marked "50" means its diameter is 50 millimeters. There are abundant material types of stainless steel round bars on the market, and the mainstream common models include 201, 202, 301, 304, 303, 304L, 316, 316L, 321, 2520 and others.

When 304 stainless steel round bars are subjected to long-term alternating loads, structural fracture may still occur after prolonged operation even if the applied stress value is lower than the yield limit of the material.

Overall market demand for stainless steel flat bars remains weak amid the new normal of slowing economic growth.

The price of stainless steel round bars has fallen into a prolonged downturn with no sign of recovery.

Heavy-duty mining drilling rigs operate in harsh environments of high dust, high vibration and heavy load for a long time, and passive maintenance after faults easily causes construction shutdown and high maintenance costs.

High-pressure hoses are vulnerable safety components of drilling and jet grouting rigs, bearing ultra-high fluid pressure for a long time. Aging, wear, cracking and leakage of hoses will cause pipeline burst, slurry spraying and safety accidents,