The grinding and polishing processes are automatically controlled and have no human intervention, thus ensuring excellent consistency. DBC needles have a micro polished high-tech coated body and optimized needle tip to geometrically ensure smooth painless insertion. The easy grip handles are especially designed with a handle length of up to 25mm both in pipe handle and spring handle products. DongBang Corporation is one of the largest acupuncture manufacturers in the world and fully committed to innovation and the continuous support of worldwide academic research in acupuncture.