TB

* Bore: 1008/1108/1210/1215/1610/1615/2012/2517/2525/3020/3030/3525/3535/4030/4040/4535/4545/5040/5050;

* Material: GG25/Steel;

* Standard: JIS/ANSI/DIN;

* Surface treatment: Oil/phosphated

QD

* Bore: JA/H/SH/SD/SDS/SK/SF/E/F/J/M;

* Material: GG25/Ductile iron;

* Surface: phosphated.