... , Φ25mm, Φ32mm, Φ38mm, Φ42mm, Φ50mm, Φ100mm and other dimensions protective sleeve of the crystallizing dish for various irregular-shaped products.It is mainly ... easily.Using methodWhen the protective sleeve is set up in the crystallizer, the insulation sleeve should be installed before the ... rope should be enlaced on the 2-3 threads for two circles, and then screw the 2-3 threads completely till the ...