他确保同样的错误今后不在发生。（see to it that）

He made sure the same mistake does not happen in the future.

Stamping molds are a special, one-time class of precision tools that make metal an ideal shape by cutting and plasticizing. Most mold constructions have several basic components, including templates, anti-grinding devices, die sets, guide pins, shaft liners, pads, pads, screws, pins, and bolts. Molds also require punch templates, pressure and stampmolding plates, and tools that protect them from rotors, shoulder bolts, iron, cages and gases.<br>There are many types of stamping molds, there are punching molds, bending molds, pull-deep molds, single-process molds, forming molds, composite molds, grade-in molds, transmission molds, punching molds, pumping molds, compression molds and other materials for the manufacture of stamping molds have steel, carbide alloys, steel-tie carbide alloys, zinc-based alloys, low melting point alloys, aluminum bronze, aluminum bronze, polymer materials, etc. The vast majority of the materials used to manufacture stamping molds are mainly steel, commonly used mold working parts materials are: carbon tool steel, low alloy tool steel, high carbon high-chromium or medium-chromium tool steel, medium-carbon alloy steel, high-speed steel, base steel and carbide, steel-based carbide and so on.

He made sure that the same mistakes would not happen in the future.<br>