3 years to focus on material research and development and achieve innovative breakthroughs. Even if the cost of raw materials rises substantially, they refuse to increase prices.
High tensile strength : In order to meet the demand of toughness, after thousands of repeated experiments, the breaking force reached 16.5N.
High finish : Does not hurt the polarized light, and is smooth and silky even under a high-power microscope.
Diversified wire diameter : It covers all kinds of models on the ma