久久99精品国产女不卡7777,国产在线精品一区二区不卡顿,免费人成网站在线观看视频,jrs低调看高清直播,国产精品无码专区

Zhengzhou haixu abrasives co., Ltd, founded in 1 9 9 9, located in xingyang city, henan province, china. Owning 20years production experence and experienced sales team, has established long terms cooperation with foreign customers which are from about forty countries including united states, germany, italy, japan, korea, russia ,malaysia and vietnam.

Zhengzhou haixu abrasives co., Ltd covers over 7500 square kilometers, owning production, accounting, purchasing, importing, exporting, afer-sales service, logistics,quality control departments with all kinds of testing equipments including omec, slap-sieve and microscope. Combining traditional crafts and advanced equipments.And is the leading one in the abrasives field.