Hexamethylene diisocyanate ( HMDI ) may be used in prepolymer, in place of TDI.六亚甲基二异氰酸酯 ( HMDI ) 可用在预聚物中代替甲苯二异氰酸酯〔TDI〕.Hexamethylene diisocysnate ( HMDI ) may be used in prepolymer, in place of TD I.六亚甲基二异氰酸酯 ( HMDI ) 可...
需要货品: PVC喷射软管 、 农业用喷射器 、 喷射管嘴及洒水器.Products wanted: PVC spray hoses, agricultural sprayers, sprayer nozzles and sprinklers.为了有效控制喷射管, 编码器安装时传动轴那一面朝上.To effectively control the jet pipes, the encoders are positioned with t...
人生就应该是快乐的，要抓住每一天，孩子们，让你们的生活变得非凡起来。Carpe diem. Seize the day, boys. Make your lives extraordinary.你旅行的每一天要么是25小时,要么就是23小时.Each day of your trip has either twenty - five or twenty - three hours.在春季里的每一天要比它以前的一天长.In the spr...