Cold rolled ball screw is to cut a depth of slot on smooth rod, slot pitch is equal to the processing pitch, and then rolled with similar threads. Its accuracy grade is C7,which is 50 μm in 300mm length. It is widely use in not high precision demands mach
It is the effective constituent of treat cardiovascular and cerebrovascular diseases, viral disease, bacterial infection, gastric ulcer, viral hepatitis and other diseases.
The main varieties include alkyl peroxides and hydroperoxides perspindle acid, ketone peroxide, perphthalein and other organic peroxides used as polymerization initiators.
Dipentaerythritol is an important fine-chemical intermediate, It is mainly used in the manufacture of alkyd resins, plasticizers, synthetic lubricants, rosin esters and fire retardant etc. Foremost Chem is a professional Dipentaerythritol supplier. Please