Shandong Minyi Quantong Metal Materials Co., Ltd. is located in Liaocheng, Shandong, with an advantageous geographical location and excellent transportation. Our company is an integrated enterprise specializing in the production and sales of seamless steel pipes, precision seamless steel pipes, bridge guardrails, collision guardrails, lighting guardrails, landscape guardrails, road guardrails, bridge collision guardrails, and stainless steel bridge guardrails in various specifications. We offer customization for special sizes. Our products are widely used in industries such as automotive, motorcycle, power, machinery, hydraulic accessories, bearings, pneumatic components, cylinders, coal mining, conveyance, boiler equipment, pipelines, and engineering, among others. The company boasts a modern research center with a comprehensive set of testing methods including mechanical property testing, process performance testing, eddy current testing, ultrasonic testing, hydrostatic testing, m...