To provide a metallic luster thread which is inexpensive and excellent in tolerance to refining processing, and to provide a laminate for the metallic luster thread from which the metallic luster thread can be obtained. 安価で、かつ精錬処理への耐性に優れた金属光沢糸、及び該金属光沢糸を得ることができる金属光沢糸用積層体を目的とする。 - 特許庁
To provide a thread rolling method of a bar like work advantageous in accommodating a position in the longitudinal direction of a second formed part of a ring groove, etc., in a tolerance. リング溝等の第2成形部の軸長方向における位置を公差内に納めるのに有利な棒状ワークのねじ転造方法を提供する。 - 特許庁
To provide a thread joint for an oil well pipe that has a sufficient resistance to tensile force and compressive force, is easily manufacturable to a machining tolerance, excels in sealing performance, and is appreciably reliable. 引張力、圧縮力に十分な抵抗力を備え、加工公差も踏まえて簡便に製造でき、シール性良好で信頼性を高められた油井管ねじ継手を提供する。 - 特許庁