Beijing Jincheng Mining Technology Co., Ltd. is a leading China manufacturer, supplier, and factory of various high-quality mining tools and equipment. Our HL38 coupling sleeves are made of premium quality material, ensuring its durability and longevity. The HL38 coupling sleeves are designed to connect the drill bit and drill rod while drilling, ensuring efficient and smooth drilling processes. Our HL38 coupling sleeves are engineered to withstand harsh mining conditions, and they are highly resistant to wear and tear. Our product is compatible with various types of drilling rigs and is suitable for a range of drilling applications. Whether you're drilling in soft or hard-rock formations, our HL38 coupling sleeves provide reliable and efficient drilling results. Our Beijing-based company has been providing mining tools and equipment for years, serving customers worldwide, and gaining a reputation for outstanding products and services. We guarantee the quality of our HL38 coupling sleeves and offer competitive prices to ensure the best value for our customers.