... newquality system & certificateISO9001:2008 & CEfunctionturning,grooving,severanceprecisionhigh precisionoriginalDalian,Liaoning,Chinawork piecepump,valvecompany naturemanufacturer,producer,factoryoperation methodmanual or semi automaticmax ... biggest enterprises in China, which belong to Dalian ChangshengLathe Co., Ltd. Our company is a professional manufacturer which develops andproduces ...