Thermal diffusion sherardizing is widely used by its good rust-resistance, whichwas developed as a new metal surface disposal technology at beginning of last century.

热扩散渗锌作为上世纪初发的一项金属表面处理技术,以其良好的耐腐性而得到广泛应用。

Thermal diffusion sherardizing is widely used by its good rust-resistance, whichwas developed as a new metal surface disposal technology at beginning of last century.

热扩散渗作为上世纪初发展起来的一项金属表面处理技术,以其良好的耐腐性而得到广泛应用。

Thermal diffusion sherardizing is widely used by its good rust-resistance, whichwas developed as a new metal surface disposal technology at beginning of last century.

热扩散渗锌作为上世纪初发展起来一项金属表面处理技术,以其良好到广泛应用。

Thermal diffusion sherardizing is widely used by its good rust-resistance, whichwas developed as a new metal surface disposal technology at beginning of last century.

热扩散渗锌作为上世纪初发展起来的一表面处理技术,以其良好的耐腐而得到广泛应用。

Thermal diffusion sherardizing is widely used by its good rust-resistance, whichwas developed as a new metal surface disposal technology at beginning of last century.

热扩散渗锌作为上世纪初发展起来的属表面处理技术,以其良好的耐腐而得到广泛应用。

Thermal diffusion sherardizing is widely used by its good rust-resistance, whichwas developed as a new metal surface disposal technology at beginning of last century.

热扩散渗锌作为上世纪初发展一项金属表面处理技术,以其良好耐腐性而得到广泛应用。

Thermal diffusion sherardizing is widely used by its good rust-resistance, whichwas developed as a new metal surface disposal technology at beginning of last century.

热扩散渗锌作为上世纪初发展起来的一项金属表面处理技,良好的耐腐性而得到广。

Thermal diffusion sherardizing is widely used by its good rust-resistance, whichwas developed as a new metal surface disposal technology at beginning of last century.

热扩散渗锌作为初发展起来的一项金属表面处理技术,以其良好的耐腐性而得到广泛应用。

Thermal diffusion sherardizing is widely used by its good rust-resistance, whichwas developed as a new metal surface disposal technology at beginning of last century.

扩散渗锌作为上世纪初发展起来的一项金属面处理技术,以良好的耐腐性而得到广泛应用。