holowness

常见例句

Jihua is established in 1995, a large scale enterprise specializing in manufacture of various precision springs, holow rivet, self-drilling screw, axle, barrette &decorations, stamping and etc.
基华公司成立于1995年，专业生产各类精密弹簧、空心铆钉、自攻螺丝、线扣车轴、发夹饰品、车件及冲压制品，产品广泛适用于电子、玩具、饰品、相机、箱包、手袋、家具等行业。
NEW DIE DESIGN ALTERNATIVES FOR PRECISION FORGING HOLOW PARTS
精密锻造空心件的锻模设计新方案
holow concrete floor system
空心楼盖