優(yōu)質(zhì)密封圈 (優(yōu)質(zhì)彈性材料) | 低質(zhì)密封圈 (不夠密封,滲漏) |
---|---|
精密螺紋蓋 | 粗糙螺紋蓋 |
高性能過濾介質(zhì):
穩(wěn)定持續(xù)燃料供應(yīng) | 劣質(zhì)的過濾介質(zhì):
不穩(wěn)定間歇燃料供應(yīng) |
壓力處理和防腐外殼 | 質(zhì)差且薄的保護(hù)外殼 過濾破裂危險(xiǎn) |
優(yōu)質(zhì)的排水閥 | 劣質(zhì)的排水閥 |
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