Jiangsu Wallong-HSIN Machinery Engineering Co., Ltd. has been a leading force in the manufacturing of top-notch oil drilling and extraction equipment, along with premium valves. Our product portfolio not only holds the prestigious ISO 9001 certification but also rigorously complies with industry benchmarks like API 6A, 6D, API 16A & 16C, ensuring unrivalled quality and reliability.

Our team comprises seasoned experts, each bringing years of invaluable experience in the petroleum machinery sector. Their profound knowledge and hands-on expertise span across every facet of the business, from innovative design and precision manufacturing to stringent inspection, comprehensive testing, strategic marketing, and seamless after-sales service. Backed by a state-of-the-art facility, we house an extensive array of cold-working and heat-working machinery, complemented by a full suite of advanced inspection and testing amenities. Whether it’s the intricate Christmas trees, robust casing heads, vital choke and kill manifolds, efficient drilling mud manifolds, high and medium pressure valves, or any other component integral to oil drilling and extraction, each product is meticulously engineered and crafted to meet and exceed the stringent requirements of API, ANSI, GB (national standards), and SY (industry standards).