... .50pcs/box,50boxes/ctn Founded in 1974,Haimen Changlong Instrument Co.,Ltd has more 30 years of production experience,we produce ... ,"Quality First,customers satisfaction"is the tenet of our company,we sincerely welcome customers at home and abroad to ... our company to negotiate busniess,OEM is also weclome. CODEDescriptionCorner10107102Cut edges ...