GB/T 93-1987
Spring washers
GB/T 7244-1987
Heavy duty spring washers
GB/T 7245-1987
Curved spring washers
GB/T 7246-1987
Wave Single coil spring lock washers
GB/T 859-1987
Single coil spring lock washers,Light type
GB/T 956.3-2017
Conical spring washers
GB/T 9074.26-1988
Single coil spring lock washer for assembly
GB 93-1976
Spring washers
GB/T 1972-3-1992
Conical spring washers，h＜1.25mm,d H12-Table 3
GB/T 1972-3-1992
Conical spring washers，1.25mm＜h≤6mm,d H12-Table 3
GB/T 1972-3-1992
Conical spring washers，h＞6mm,d H12-Table 3
GB/T 1972-3-1992
Conical spring washers，h＜1.25mm,d H13-Table 3
GB/T 1972-3-1992
Conical spring washers，1.25mm＜h≤6mm,d H13-Table 3
GB/T 1972-3-1992
Conical spring washers，h＞6mm,d H13-Table 3
GB/T 1972-4-1992
Conical spring washers，h＜1.25mm,d H12-Table 4
GB/T 1972-4-1992
Conical spring washers，1.25mm＜h≤6mm,d H12-Table 4
GB/T 1972-4-1992
Conical spring washers，h＞6mm,d H12-Table 4
GB/T 1972-4-1992
Conical spring washers，h＜1.25mm,d H13-Table 4
GB/T 1972-4-1992
Conical spring washers，1.25mm＜h≤6mm,d H13-Table 4
GB/T 1972-4-1992
Conical spring washers，h＞6mm,d H13-Table 4
