| Message: | 1.AFR Precision Technology Co.,Ltd is a professional company inBallpoint pen springx24e13dan,FR4 manufacturers china. Since its inception,with innovative technology,advanced management,high-quality service,we won the majority of customer recognition.The companys core values are:either do not do,or do tension spring manufacturers service really well
2.AFR Precision Technology Co.,Ltd have FR4 manufacturers china Business,Ballpoint pen spring second to none,precise compression springs that brand is good,FR4 manufacturers china Price consultation,Credible precise compression springs,compression spring force and other areas of expertise, combined with excellent service capabilities, To provide customers with professional, customized Compression springs. Moreover, since the establishment of a long time ago,the springsbusiness of AFR Precision has always maintained a high-speed and stable growth. details: Needle tubing spring pen point and ball-point pen cartridge comprising sameThe invention provides a needle tubing spring pen point. The needle tubing spring pen point comprises a cylindrical ball seat body, a ball and a spring, wherein one end of the ball seat body is provided with a ball seat; the other end of the ball seat body is provided with an opening and a lock part adjacent to the opening; the ball seat body also comprises an ink supply passage formed between the ball seat and the opening; the ball seat is provided with a central hole and a plurality of oil slots; the ball is arranged in the ball seat and is protruded from the ball seat; the spring is positioned in the ink supply passage and is made of stainless steel wires with the diameter of 0.08-0.1mm; the external diameter of the spring is 0.5-0.55mm; and the edge of the ball seat is bent and deformed towards the ball to receive balls, so that a radial gap and an axial gap are formed between the edge and the balls. The invention also provides a ball-point pen cartridge comprising the needle tubing sprin |
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