国产精品无码日韩欧六十路_最新日韩AV在线网站_免费四虎永久在线精品_91成人自拍视频_亚洲国产三级电影_亚洲三级影视自拍_又粗又长又大的毛片_樱花视频免费观看完整下载_最近免费中文字幕大全高清大全1_欧美亚洲国产片在线观看不卡

       Bosite has a full range of testing equipment, the establishment of a complete set of quality assurance system, strict testing procedures. Nondestructive testing, spectroscopic analysis, physical and chemical test, hardness test, wall thickness test, mechanical performance test, metallographic analysis, pressure test and CAD valve design center.

       From raw materials into the plant, process and machine factory all aspects of tracking and detection, when each of our products are in accordance with the national standard of 100% tests.

       Advanced detection equipment and strict scientific management, so that each of the finished products can stand selection, which is the secret of Bosite products to sell well.