Bonnell Spring Unit

spec required:
spring coil spec: wire thickness, height, turns,
size;
coil count;
border.

spec required:
spring coil spec: wire thickness, height, turns,
size;
row count;
border.

Transportation:by air,by sea;

Transportation:by air,by sea;

Transportation:by air,by sea;

Transportation:by air,by sea;

Transportation:by air,by sea;