外商出口采購throttle valve節氣門 節氣門，我司需要客製化，外觀基本和圖片一樣，材料、壓力、氣流方面我們有一些要求，先測樣品，四種訂製款。 Requirement: 1. There are four types of electrical actuated valves we would like to require as below, Tv, Bp, Si