We also develop special purpose anti - sulfured hydrogen tubing and endure cauterization tubing which upgrade the competitive force and science and technology content .
同时开发特殊用途的防硫化氢油管，耐腐蚀油管等，从而提升了产品的竞争力和科技含量。
The relatives would begin to go into the house or around the lawn to their houses , leaving me to brush the tears away with fingers sulfured by the firecrackers .
