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![]() For 22 years, we have focused on delivering exceptional customer service. Our valves adhere to rigorous standards such as API 6D, BS 5351, ASME B16.34, and DIN 3202, and our company is certified with ISO 9001, ISO 14001, and ISO 45001. With strong design capabilities, advanced processing and testing equipment, and a dedicated team, Topper ensures the performance, quality, and timely delivery of its products, which are widely used in industries such as petroleum, chemical, electric power, steel, shipbuilding, and water treatment worldwide. [Detailed Introduction] |