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.
基華公司成立於1995年，專業生産各類精密彈簧、空心鉚釘、自攻螺絲、線釦車軸、發夾飾品、車件及沖壓制品，産品廣泛適用於電子、玩具、飾品、相機、箱包、手袋、家具等行業。
NEW DIE DESIGN ALTERNATIVES FOR PRECISION FORGING HOLOW PARTS
精密鍛造空心件的鍛模設計新方案
holow concrete floor system
空心樓蓋