1, GB4622.2-93 twines type spacer to run flange measure series
2, flange of canal of GB9126.1-88 plane steeliness uses asbestine oak film
3, GB9126.2-88 convex profiled bar makes tubal flange use asbestine oak film
4, flange of canal of GB9126.3-88 roughness steeliness uses asbestine oak film
5, flange of GB9129-88 steeliness canal uses condition of technology of asbestine rubber packing sheet
6, join of flange of GB9130-88 steeliness canal fills up technical condition with ferrule
7, HGJ70-91 steeliness is in charge of flange to use flexible black lead is compound spacer

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