【生活】皮下注射器针头注入装置

DECA device【核】

transit-time tube, collector cooling device

boring device able to be attached to the tailstock

blade side shift device【机】

guide device

floor-scrubbing machine with take-up device for liquid

back-siphonage preventer, anti-siphonage device, backflow preventer

staple-feeding device for stapling tools