歐美日本不卡_56pao在线视频国产_日韩特黄AAA一级片_在线观看的黄色网址_亚洲午夜短片免费_成人18毛片免费_国产精品福利高清hd_久久精品欧美一区二区三区麻豆_变态色视频综合在线观看_日本韩国高清免费观看

All metal parts are made of brass material, nickel or chrome plated
with calibration 
marks on glass barrel
perfect dose adjustment
uitable for the inoculation of livestock.
Clean well and oil with silicone oil , Regularly replace washers.

50ml revolver syringe dosage 1.0-5.0ml