... All, We have a lot of pioneer weston original oil seals in stock.The model number of pioneer weston is WR ... ,and so on2.Application: trains,automobile,motocycles,trucks,buses,agricutural machinery and any equipments3.Certification: GB/T19001-2000-ISO9001: 2000 standard4 ... undercontroled by Railway Ministry9.Designing and manufacturing all of oil seals, gaskedts,o-rings ,and so on. Pioneer Weston Oil ...