Shining Jins Enterprise Co., Ltd. specializing in manufacturing & designing cold forge Pole piece (T-Yoke) for Loud-Speakers and alarms raw driver in Taiwan. Production capacity: T-Yoke/Pole Piece : Diameter of Piece : 28mm up to 250mm Diameter of Pole : 10mm up to 70mm Length of Pole : 6mm up to 80mm Thickness of Piece : 2mm up to 30mm U-Yoke/Neodymium Yoke : Outside - Diameter of U-Yoke : 30mm up to 100mm ln-side - Diameter of U-Yoke : 12mm up to 90mm High of U-Yoke : 5mm up to 70mm Thickness of Piece : 2mm up to 30mm Depth of U-Yoke : According to customer design Technical Description: - Material: Low carbon steel - Entire surface shot blasting - CNC precision machining - Galvanizing - Barrel Zinc Plating - Hanging Zinc Plating - Cationic Electro-Deposition Coating (CED) Please visit our website to have a further understanding about the full range of our products. Your any inquiry would take our full attention. SHINING JINS ENTERPRISE CO., LTD. No.107, Lane 530, Sec. 1, Guoji Road., Taoyuan Dist., Taoyuan City 330, Taiwan. Tel: +886-3-361 0638 Fax: +886-3-367 7527 Web: http://www.shiningjins.com E-mail: sales1@shiningjins.com speaker,pole piece,Polkern ,t-yoke,placa polar,u-yoke,woofer,voice coil,cone paper,washer,pole plate,diaphragm,speaker Frame,altoparlanti, altovoz,luidspreker,alto falantes,haut-parlear,spyker,hoparlor,parlantes,Lautsprecher,