Is it better to cut stainless steel or alloy steel for bonsai ball joints?

Alloy steel is good. The oblique mouth of stainless steel bonsai ball-head shears includes the functions of oblique mouth and ball-head shears, which are used to trim bonsai tree tumors and branches. Steel alloy bonsai ball joint scissors are used to trim bonsai tree nodules, tree joints and ball joints. After pruning, a concave spherical incision is left, so that the plant healing resin will cover the concave incision, and after a long time, the traces left by pruning will not be seen.