Shenzhen Sunbow Insulation Materials MFG. Co., Ltd. Established in 2003. Our main products include fiberglass sleeving, silicone rubber tube, PVC tube, heat shrink tube, PTFE/FEP tube etc. All our fiberglass sleeving had been obtained the UL and CSA certificates in 2010 (Cert No: E333178--UZIQ2, VW-1 & E333177--UZFT2/8, 200C, 600V ); Our heat shrink tube, silicone rubber tube and PTFE tube had been obtained UL certificate in 2013 (Cert. No. E360625); PVC tube had been obtained the UL certificates In in Apr.2014 (Cert.No.E467953); In May. 2012, our products successfully had been passed CQC test (Certificate No. CQC12134072554). It provides security for domestic and foreign home appliance supplier in Chinese mainland market. Till now, we are the only one fiberglass sleeving manufacturer which obtained UL, CSA, and CQC certificates. Also we are the only one manufacturer which can provide certificates for all color and maximum size range (from 0.55mm to 25.4mm).