black internal diameter 4mm round glass knobs

Established in 1990, One of the leading manufacturers and distributors of electronic components in China. We have fruitful international exporting experience . Our Company Advantage: 1, Steady & Skillful production ability. 2, Flexible & Effective working Team4, 3, Reasonable & Competive Price 4, Research & Development of New products. 5,best service, in-time delivery, & small order acceptance. Our main products are about 4,000 models of indicators ,alligator clips ,pushbutton switches, rocker switches, slide switches,micro switches, toggle switches, fuse holders, battery holders,battery snaps, relays, power relays ,terminal block etc many kinds products. The products are widely used in the fields of electronics, instruments, communication, sound and audio gears, medical apparatus, and household. The products are deeply welcomed and trusted for perfect appearance, excellent performance, reliable quality and good after-sales service. We are quite capable of developing new products. We have professional moulding design engineers and advanced processing equipment. OEM /ODM is acceptable for us . We are looking forward to more and more cooperation with overseas customers based on mutual benefits. "Honesty management, Reciprocal Cooperation ,Quality foundation, Service Upmost" is our business principle . Contact with us at once !