... ,C10-C15 balls are case-hardened only(surface heat treatment),low carbon steel balls offer considerable saving in all those ... ,the most common applications include furniture wheels,bearings for darwers,locks,grease,nipples,sliding,blocks,toys.MOQ 1Ton ... against when specific order confirmed Delivery timeusually 20 days for one 20ft containeror discuss when order confirmedPort of loadingQING ...