Dongguan Litian Hardware Machinery & Electrical Co.,Ltd. established in 2007 covers an area of 30,000sq.m, is a professional manufacturer of hardware fasteners. Mainly products are widely used in communications, electrical appliance, automobiles, ships, aviation, toys, lighting and other related industries. Our company attaches importance to quality and strives for survival by quality. Our quality concept is: Defective products are not be accepted, produced and released. Thread plug gauge(stop gauge) and inner hollow needle gauge a...