small standard plastic worm gears material:pom,Nylon and so on moq:3000pcs high quality,accept OEM certification:ISO9001 small standard plastic worm gears material:pom,white colormoq:3000pcscertification:ISO9001 2008high qualityOEM for plastic worm gears1):Production machine:most advanced CNC manchine which imported from Japan 2):Precision/tolerance:0.001mm;3):Certificate: ISO9001:20084): ...