亚洲精品字幕在线观看,久久久久人人爽人人爽人人片av,国产成人秘 在线观看免费网站,国产AV无码乱码精品国产,欧美性受XXXX黑人XYX性爽
Quality

We have established a complete quality management system to achieve a comprehensive management of the production, which is the lifeline for fine chemical enterprises. There is a strict and careful selection process from raw materials to equipment, and the production, packing and transportation process is strictly inspected. All the efforts are made to meet customers’ requirements on quality. All the production bases (except the production bases to be built) of Chemspec are the ISO9001, ISO14001 and OHSAS18001 enterprises that pass the third-party certification. The quality system has got promise from the management and has organizational guarantee.