方案2

https://www.webstaurantstore.com/ts-013121-45-36-flex-hose-with-1-2-female-and-male-connections/51001312145.html?utm_source=Google&utm_medium=cpc&utm_campaign=GoogleShopping&gclid=EAIaIQobChMIn_Kc-NDF4AIVjeNkCh2kKAg7EAkYASABEgIHbPD_BwE

所有跟帖： 

• 还真有这种规格的 -jasonshane- ♂ (68 bytes) () 02/18/2019 postreply 08:48:22