Sun Petroleum Equipment Mfg Co.,Ltd one of the leading manufacturers of nozzles&＃12289; tank transport product (api bottom loading adaptor&＃12289;petroleum manholes&＃12289;grade level spill&＃12289;&＃12289;&＃12289;) swivels&＃12289;valves of service station manufacturer in China with the longest history.  Up to now, AILE has got three national patents and passed the ISO9001 Certificate. We has been the member of PEI (Petroleum Equipment Institute) and now has applied for the UL certificate (Underwriters Laboratories Inc.).