超碰97av在线,亚洲有码日本有码在线,成人福利一区

化工產(chǎn)品及用途數(shù)據(jù)庫香料庫顏料庫染料庫化學(xué)配方數(shù)據(jù)庫暢銷藥物查詢系統(tǒng) 藥物化學(xué)大辭典 FDA藥品批準(zhǔn)信息 FDA藥品獨占權(quán)信息 FDA藥品專利信息 DMF提交信息庫

化學(xué)配方數(shù)據(jù)庫

配方類型：	METALS AND THEIR TREATMENT
配方說明：	Foundry-Core Mix (For Aluminum)
配方組成：	Water/20-30 "Resimene" 970/7 Sand (90-130 A.F.S.)/1000 (Distilled oleic acid (red oil). Release Agent*/4 Cereal Flour/6
配制方法：	In aluminum core work, the weakest possible core, consistent with core-handling requirements, is desirable. Often a much "Weaker" mix than this is used and the cores are sprayed with water before being placed in the baking oven. This produces a core with a strong skin and maximum collapsability.

@2009-2026 洛克化工網(wǎng) 浙ICP備16009103號版權(quán)聲明

日韩性爱女同性恋,玖玖综合日,不卡啪啪视频,4月婷久久,精品在线观看视频,亚洲一区精选自拍,日韩欧美人妻网站一区,麻豆精品视频一区二区,色尚和久久